Broadly, metamorphism involves changes in mineralogy and texture in response to heat and stress.
The solid-state processes known as metamorphism include adjusting rocks' chemical (mineralogical) and/or textural properties to circumstances that are different from those in which they were first produced.
Contact, regional, and dynamic metamorphism are the three different kinds.
The most typical type of metamorphism that takes place across large regions is regional metamorphism. Due to plate tectonics and the thickening of the crust, it is produced by tremendous temperature and pressure.
Therefore, in reaction to heat and stress, minerals undergo metamorphism, changing in texture and mineralogy.
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Why do some developing nations oppose Western initiatives to limit atmospheric pollution and global warming
These initiatives pose a risk to economic growth.
How might the seasons have affected life at kule loklo on the northwest coast of the us?.
Kule Loklo is located on the northwest coast of the U.S. and gets affected because of variations in seasons. In the late spring, fresh young Indian lettuce, nettle, and clover leaves were harvested. Likewise, variations can be seen in the winter season as well.
What is Kule Loklo?
Within a short distance of the Point Reyes National Seashore, the visitor center is Kule Loklo, a Coast Miwok Native American town that has been meticulously restored. Marin County, California. In honor of Marin County's native Coast Miwoks, the Miwok Archeological Preserve of Marin (MAPOM) built Kule Loklo in the 1970s. The ceremonial roundhouse in Kule Loklo was destroyed by arson in 1992.
The seasons have a profound impact on the way of living along the coast. Indian lettuce, young nettle leaves, and clover were all collected in the late spring. Acorns, seeds, and kelp that had been preserved served as key food sources over the winter and early spring.
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Andrew drew this diagram to show a certain type of weather front. Which type of front is it?
Answer:
The answer is stationary front
For several decades land speed records have been held by jet and rocket propelled cars. Most attempts are carried out in various remarkably flat stretches of desert in the U.S. west. Suppose that a rocket car is going to attempt to set a new land speed record. It starts from rest and drives east on a very flat stretch of ground. At t=0 it starts to move. From t=0 until some t a
it speeds up with a constant acceleration. At t a
its rocket suffers a malfunction and shuts down. The car coasts at nearly constant speed from t a
until t b
. At t b
it deploys a parachute to slow down so that from t b
until t c
it slows down at a variable rate. It is slowing down quickly at the start of this time interval, but the rate at which it slows down is gradually decreasing. At t c
it cuts the parachute loose and then slows down at a constant rate using wheel brakes. The rate at which it slows down through this whole time is a lower rate than at any time while the parachute was deployed. It comes to rest at some later time, t d
. (a) Sketch an a vs. t graph, a v vs. t graph, and a x vs. t graph for the rocket car. Stack these graphs with key times lined up, the way I did in the videos and the way we practiced in class. (b) Let's put some numbers on this. Suppose that from t=0 until t a
=12 s the car is speeding up at a rate of 8.0 m/s 2
. Define axes, and write down the knowns and unknowns for the motion over this time interval. Don't do any calculations yet. (c) Calculate (the order I've written them in may not be the easiest order): - The average speed of the car over the time period from t=0 to t=t a
. - The speed of the car at t=t a
. - The distance traveled by the car from t=0 to t=t a
. (d) Find the average speed of the car from t=6.0 s until t=t a
.
The main answer to the given question is that the average speed of the car over the time period from t=0 to t=ta is 48 m/s, the speed of the car at t=ta is 96 m/s, and the distance traveled by the car from t=0 to t=ta is 576 meters.
In the first step, we need to analyze the motion of the rocket car and plot graphs of acceleration (a) versus time (t), velocity (v) versus time (t), and position (x) versus time (t).
Starting with the a versus t graph, it will show a constant positive acceleration until t=ta, indicating the rocket's acceleration phase. At t=ta, the acceleration abruptly drops to zero, representing the malfunction and shutdown of the rocket. Then, from t=ta to t=tb, the acceleration remains zero, indicating coasting at a nearly constant speed.
At t=tb, the parachute is deployed, and the acceleration becomes negative, gradually decreasing until t=tc when the parachute is cut loose. After t=tc, the acceleration becomes negative and constant, representing the use of wheel brakes until the car comes to rest at t=td.
The v versus t graph will follow a similar pattern. It will show a linear increase in velocity from t=0 to t=ta, indicating a constant acceleration phase. At t=ta, the velocity abruptly changes to a higher value due to the malfunctioning rocket shutting down. From t=ta to t=tb, the velocity remains nearly constant as the car coasts. At t=tb, the parachute deployment causes a gradual decrease in velocity until t=tc when it is cut loose. Finally, from t=tc to t=td, the velocity decreases at a constant rate due to the wheel brakes.
The x versus t graph will start at zero slope, representing no motion until t=0. From t=0 to t=ta, it will exhibit a positive concave-upward slope, indicating increasing displacement. At t=ta, the slope abruptly decreases to zero due to the constant velocity during coasting from t=ta to t=tb. The slope remains zero until t=tc when it becomes negative, indicating a decreasing displacement during braking until the car comes to rest at t=td.
The motion of the rocket car can be described using the equations of motion. In the acceleration phase, we can use the equation v = u + at, where v represents the final velocity, u the initial velocity (which is zero since the car starts from rest), a the acceleration, and t the time. Since the car starts from rest, the initial velocity is zero, and we have v = at. From t=0 to t=ta, the acceleration is 8.0 m/s², and we can calculate the speed of the car at t=ta using this equation.
To find the average speed from t=0 to t=ta, we can use the formula for average speed, which is given by average speed = total distance / total time. The total distance traveled can be determined by calculating the area under the v versus t graph from t=0 to t=ta. By integrating the equation v = at, we can find the displacement equation x = (1/2)at². By substituting the values of a and t=ta, we can find the distance traveled.
Finally, to find the average speed from t=6.0 s to t=ta, we can use the same formula for average speed and calculate the total distance traveled during this time period. This can be done by finding the area under the v versus t graph from t=6.0 s to t=ta.
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mineralogical analysis of a rock can tell us a. what the rock is made of b. the detailed geological history of the rock c. the temperature and pressure conditions under which it formed d. when the rock formed
The mineralogical analysis of a rock can tell us what the rock is made of, the detailed geological history of the rock, the temperature and pressure conditions under which it formed, and when the rock formed.
In a mineralogical analysis of rocks, the minerals that the rock is composed of are identified through a microscope. Mineralogy is the study of the chemical composition and structure of minerals. A mineral is a naturally occurring substance formed from geological processes that have crystallized out of a solution.
Specifically, mineralogical analysis involves examining the minerals in the rock and their relationships to each other. This can help us determine what the rock is made of and what kind of environment it formed in (temperature and pressure). Additionally, examining the relationship between minerals can provide clues about the geological history of the rock. By analyzing radioactive isotopes, we can also estimate when the rock formed.
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19. How was the 2000 presidential election in Mexico different from elections of previous decades?
Voter turnout was between 63 and 64% in the elections. This historically significant election made Fox the first president elected from an opposition party since Francisco I. Madero in 1910, and the first one in 71 years to defeat, with 42 percent of the vote, the then-dominant Institutional Revolutionary Party (PRI).
. how did the craters that you created differ from lunar craters? were your initial guesses about which factors would determine the sizes and appearances of your craters confirmed, or denied?
The primary distinction between the 2 is that Earth has approaches that could erase nearly all proof of beyond influences.
The Moon does now not. quite plenty any tiny dent made on the Moon's floor goes to live there. Three techniques assist Earth to hold its surface crater free.
The scale and shape of the crater and the amount of fabric excavated rely on factors inclusive of the velocity and mass of the impacting frame and the geology of the surface. The quicker the incoming impactor, the bigger the crater.
The expertise of the ages of lunar craters opened a course for investigating different planetary surfaces. these days, scientists can make inferences about the geologic histories of planetary bodies without ever touchdown on their surfaces.
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which of the following statements concerning california's three sets of base lines and meridians is true?
A. The Humboldt Base Line and Meridian in the southwestern part of the State; The Mt. Diablo Base Line and Meridian in the central part of the State; and The San Bernardino Base Line and Meridian in the northwestern part of the State.
B. The Humboldt Base Line and Meridian in the northwestern part of the State; The Mt. Diablo Base Line and Meridian in the central part of the State; and The San Bernardino Base Line and Meridian in the southern part of the State.
C. The Humboldt Base Line and Meridian in the northwestern part of the State; The Mt. Diablo Base Line and Meridian in the southern part of the State; and The San Bernardino Base Line and Meridian in the central part of the State.
D. The Humboldt Base Line and Meridian in the central part of the State; The Mt. Diablo Base Line and Meridian in the northwestern part of the State; and The San Bernardino Base Line and Meridian in the southern part of the State.
It is accurate to use the Humboldt Base Line and Meridian in the state's northwest, the Mt. Diablo Base Line and Meridian in the state's centre, and the San Bernardino Base Line and Meridian in the state's south.
Option b is correct
The Public Land Survey System (PLSS) uses these three base lines and meridians to precisely identify and locate land parcels in California. The state's northwest region is home to the Humboldt Base Line and Meridian, which passes through Humboldt County.
The Contra Costa County portion of the state's centre is where the Mt. Diablo Base Line and Meridian is situated. Southern California is where the San Bernardino Base Line and Meridian are situated.
Hence, Option b is correct
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the destructive power of a tsunami is due mostly to the great height of the wave. TRUE/FALSE
FALSE. While the height of the wave can contribute to the destructive power of a tsunami, it is not the only factor. Tsunamis are caused by undersea earthquakes, volcanic eruptions, or landslides that displace large amounts of water.
The speed and force of the water as it moves inland can cause significant damage to buildings, infrastructure, and even entire communities. The volume of water that a tsunami can carry also adds to its destructive power, as it can lead to flooding and destruction of coastal areas.
Additionally, tsunamis can generate strong currents that can drag people and objects out to sea or cause significant erosion of coastlines. Therefore, it is not just the height of the wave, but also the speed, force, volume, and other factors that contribute to the destructive power of a tsunami.
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Which phrase best defines a mountain range?
'a landform with multiple peaks in the same area.
b) Explain how the features of coastline
above were created and if they are always
created in the same way
Answer:
The Coastline was created in 1983.
Explanation:
Pe o hartă cu scara de proporţie de 1 : 2 000 000, distanţa dintre două localităţi este de 8 cm. Calculaţi cât este distanţa dintre cele două localităţi în teren, în kilometri, pe baza scării de proporţie a hărţii
Answer:
the distance between two localities in kilometers is 200 km
Explanation:
The computation of the distance between two localities in kilometers is as follows
Given that
= 1: 2000000
= 1 cm - 200 km
Now the distance between the two localities is 10 km
So, the distance between two localities in kilometers is
= 10 × 20
= 200 km
Hence, the distance between two localities in kilometers is 200 km
The same is to be considered
What mineral features can be used to determine the type of mineral??
Describe three problems that migrant workers often face. How could language, working conditions, and economic opportunities cause these groups to struggle?
Answer:
Discrimination, language barrier, and low pay. Migrant workers tend to work hard labor which means they are being paid less for a physically taxing job. You don't need a degree to get into hard labor hence why the pay is low.
Language barrier, Discrimination, and low pay are the three problems that migrant workers often face.
Who are the migrant workers?A person that is referred or has been displaced in a remunerated action in a State of which he or she is not a national is referred to as a “migrant worker.”
Migrant employees are more likely to work hard labor, meaning they are paid less for a physically demanding job. Hard labor does not require a degree, this is only the reason on which the salary is cheap.
This influenced the working conditions, language, and economic opportunities cause these groups to struggle
Therefore, Migrant employees frequently confront three issues: language barriers, discrimination, and low compensation.
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We now know that africa was where humans evolved and thrived for millions of years before migrating elsewhere. What evidence supports this idea?.
Answer:fossil evidence and DNA evidence
Explanation: Already did that question
Question 10 of 35
Which kind of division of time on the geologic time scale has the name Pleistocene?
A. An era
B. An epoch
C. An eon
D. A period
SUBMIT
The Pleistocene is a division of time on the geologic time scale known as an epoch.
The Pleistocene is an epoch within the geologic time scale. It is the most recent epoch of the Quaternary Period and is characterized by multiple glaciations, including the widespread presence of large ice sheets and the formation of various landforms associated with glacial activity.
The Pleistocene epoch is known for its significant climatic fluctuations, with alternating periods of colder temperatures (glacial periods) and warmer interglacial periods. These climatic changes had a profound impact on Earth's environments, flora, and fauna, leading to the evolution and extinction of numerous species.
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Discuss the unique relationship Canada shares with the United States
Which topic is most closely related to the study of culture as part of human geography? The process France uses to select leaders, The growth of Egypt’s population since 1900,Value of goods exported from Brazil, Or the different religions practiced in India.
Explanation:
Cultural geography is a subfield within human geography. Though the first traces of the study of different nations and cultures on Earth can be dated back to ancient geographers such as Ptolemy or Strabo, cultural geography as academic study firstly emerged as an alternative to the environmental determinist theories of the early 20th century, which had believed that people and societies are controlled by the environment in which they develop.[1] Rather than studying pre-determined regions based upon environmental classifications, cultural geography became interested in cultural landscapes.[1] This was led by the "father of cultural geography" Carl O. Sauer of the University of California, Berkeley. As a result, cultural geography was long dominated by American writers.
Countries that join the International Monetary Fund (IMF) must commit to __________.
A.
reducing trade with non-IMF countries
B.
removing all barriers to trade
C.
pursuing stable economic policies
D.
deflating their currency during economic recessions
Answer:
prob c cuz process of elimination
Explain a factor that accounts for contemporary population growth.
The factors that accounted for the population growth are birth date, death rate, immigration, and emigration.
The following information should be considered:
The birth date deals with the no of babies born at the particular time period. If there is an increase in the birth rate, so the population should increase and vice versa.The death rate deals with the no of deaths during a particular time period. If the death rate is increased so the population should decrease and vice versa.Immigration deals with the movement of the people are in the place. If immigration is increased so the population should be high.Emigration means the movement of the people that are out of the place. If it is increased so the population is decreased.Therefore we can conclude that the factors that accounted for the population growth are birth date, death rate, immigration, and emigration.
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Which factor contributed most to the exponential growth of the human population?
Study the timeline.
A timeline. 4.5 billion years ago, Earth is formed. 4.3 billion years ago, Earliest water. 4.1 billion years ago, Single celled life. 3.5 billion years ago, Earliest oxygen and photosynthesis. 2.5 billion years ago, Complex single celled life. 1.5 billion years ago, Multi cellular life. 500 million years ago, Land life. 300 million years ago, Dinosaurs. 200 million years ago, Mammals. 130 million years ago, Flowers. 5 million years ago, Humans.
Based on the timeline, about how many years ago could the oldest mammalian organism have lived?
5 million years
200 million years
1.5 billion years
4.5 billion year
it is B
Answer:
200 million years for sure
during the ______, the sun's direct rays fall on equator, and the length of day and night is equal everywhere.
During the Equinox, the sun's direct rays fall on the equator, and the length of day and night is equal everywhere. Hence, the answer to your question is Equinox.
An equinox occurs when the plane of the Earth's Equator is aligned with the center of the Sun.
On this day, the sun is exactly above the Equator, and both the North and South Poles are equally illuminated.
The word 'equinox' comes from the Latin word for 'equal night,' and on this day, day and night are both 12 hours long everywhere in the world.
Given that an equinox happens twice every year, in March and September. The March Equinox is also known as the Vernal Equinox, while the September Equinox is known as the Autumnal Equinox.
Hence, during equinox every year when the length of day and night is almost equal everywhere.
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What direction is the Arctic to Canada.
Answer:
If u mean the Arctic Ocean its the north of canada
Explanation:
state three factors that affect solar radiation from reaching the earth's surface
Answer:
1. Cloud cover
2. Air pollution
3. latitude of a location
Why don't we see the light being emitted by our own bodies?
because our bodies are too cold for us to see the radiation
because our bodies do not emit any radiation
because our bodies are too hot for us to see the radiation
The reason why we don't see the light being emitted by our own bodies is that our bodies are too cold for us to see the radiation. Every object in the universe emits radiation in the form of photons, which are particles of light. This radiation is known as blackbody radiation.
The amount of radiation emitted by an object depends on its temperature. The hotter an object is, the more radiation it emits. Our bodies emit radiation in the infrared region of the electromagnetic spectrum, which is invisible to the human eye. Infrared radiation has longer wavelengths than visible light, and our eyes are not sensitive to these wavelengths. However, specialized cameras can detect this radiation, and scientists use them to study heat distribution in the human body.
So, in summary, our bodies do emit radiation, but it is in the form of infrared light, which is invisible to the human eye. Our bodies are not too hot or too cold for us to see the radiation, but rather our eyes are simply not sensitive to the wavelengths of light that our bodies emit.
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What are some of the ways geographers divide land into regions?
Some of the ways that Geographers would divide lands into regions would be based on the following:
LanguageGovernmentReligion.What is a region?In the field of geography the term region has to do with the areas and the zones that have lands and territories that are known to have similar characteristics in terms of physical environment, human impact and the way that the people would interact with the environment that they are Known to live in.
The wildlife that is in a place, the climate and the weather can be used to also define the regions of the world. These are some of the ways that we can divide lands into regions.
Hence we can say that Some of the ways that Geographers would divide lands into regions would be based on the following:
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Multiple Choice questions
1)
Mix and Match based on chart below
S1 A. Staurolite
S2 B. Garnet
S3 C. Kyanite
S4 D. Chlorite
The GigaPan of sample set S shows a collection of four different mineral samples. These are common metamorphic index minerals: minerals found in metamorphic rocks that indicate a particular set of metamorphic conditions.
From left to right, let's call them S1, S2, S3, and S4. Use the following metamorphic index mineral classification
Hardness
Streak
Cleavage
Color
Distinctive
features
Name
Metamorphic
Grade
~ 2.5
White?
1 excellent
Dark green
1 excellent cleavage, green color
Chlorite
Low
6-7
White to grey
1 good
Light ‘pistachio’ green
Dull luster, often occurs in "pods"
Epidote
Low + hydrous (watery) conditions
> 6.5
None
None
Reddish-brown; may show rust
Forms 12-sided crystals
Garnet
Medium
~ 4.0
White
1 excellent
Light blue to grey, often with a rusty surface
Breaks into thin, bladed crystals
Kyanite
Medium-high
> 6.5
None
Poor
Dull brown
Hexagonal prisms, forms crosses
Staurolite
High
QUESTION 2
Sample image 1 was originally one sample, but it was then cut in half and polished.
There are three minerals in this rock. First, examine the white / tan mineral. This is the main mineral in this rock.
It would effervesce (fizz) if you put hydrochloric acid on it. What mineral is it?
a) calcite
b) quartz
c) garnet
d) chlorite
e) staurolite
f) kyanite
1 points
QUESTION 3
Continue examining the minerals that make up image 1. Now examine the green mineral.
This is the second most common mineral in this rock, imparting the prominent green stripes to the rock.
It is a metamorphic index mineral (one of the ones you saw in the image 2). What mineral is it?
a) calcite
b) quartz
c) garnet
d) chlorite
e) staurolite
f) kyanite
1 points
QUESTION 4
Continue examining the minerals in iamge 1. Now it is time to examine the dark red mineral.
This is the least common mineral in this rock. It is a metamorphic index mineral
(another one of the minerals that you saw in the image 2). What mineral is it?
a) calcite
b) quartz
c) garnet
d) chlorite
e) staurolite
f) kyanite
For question 1, the task was to match the mineral samples in the GigaPan image with their respective names and distinctive features. Sample S1 was identified as Staurolite due to its high hardness, dark green color, and excellent cleavage.
Sample S2 was identified as Garnet due to its light blue to grey color, bladed crystal structure, and hardness in the medium range. Sample S3 was identified as Kyanite due to its distinctive hexagonal prism shape, dull brown color, and medium-high hardness. Finally, sample S4 was identified as Chlorite due to its low metamorphic grade, green color, and excellent cleavage.
For question 2, the white/tan mineral in image 1 that would effervesce with hydrochloric acid was identified as calcite. This is because calcite is a mineral that is reactive with acid, producing a fizzy reaction.
For question 3, the green mineral in image 1 was identified as a metamorphic index mineral and the options provided were calcite, quartz, garnet, chlorite, staurolite, and kyanite. Given that it imparts prominent green stripes to the rock, the correct answer is chlorite, which is also a green-colored mineral and a common metamorphic index mineral.
For question 4, the dark red mineral in image 1 was identified as another metamorphic index mineral, and the options provided were calcite, quartz, garnet, chlorite, staurolite, and kyanite. The correct answer is garnet, as it is a red to reddish-brown mineral that often forms distinctive 12-sided crystals and is a common metamorphic index mineral.
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When studying the Calumet region of Illinois and Indiana, Alfred Meyer noted four stages of development as new groups occupied this land. In stage 4, __________, new cities spread across new territory and grew toward one another. A. fur trading B. subsistence agriculture C. conurbanization D. commercial agriculture
"In stage 4, conurbanization, new cities spread across new territory and grew toward one another."
What is conurbanization?Alfred Meyer invented the term "conurbanization" to describe the process by which a collection of cities spreads out over a region. These cities were originally divided, but rapid urbanization caused them to expand to the point where they joined forces to form a much larger metropolitan region.
As is the case in many sections of the United States, as well as major cities in England, Mexico, or China, these cities, which were before divided by the countryside or natural areas, are now a part of one another.
Alfred Meyer identified four stages of growth in the Calumet region of Illinois and Indiana as new tribes inhabited this territory. In stage 4, conurbanization, new cities became closer to one another as they expanded throughout the new region.
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“ when developing a model of the cycling water between the land, ocean and atmosphere ,one must include the force of the propel the water .for the model ,this versus would be which of the following
A - River , streams , and tribunes
B- The polar ice caps and ocean
C-plants , animals , and human activity
D- The suns radiation and gravity”?