Explain how the shape of a river's stream bed can affect the river's speed and its power to cause erosion.
Answers
Explanation: The shape of a river's stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water's motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water's motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.
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Answer:
It changes the amount of friction there is. There is more friction where water is shallow, and less friction where water is not as shallow. The friction has the power to cause erosion as it causes movement of water.
Related Questions
Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z.
Answers
Answer:
X = 120
Y= 710
Z= 620
Explanation:
The Density of Rocks Part A Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z. Rock Balance Reading of Rock Mass (g) X triple beam part of mass balance with top beam with pointer at 20, middle beam with pointer at 0, and lowest beam with pointer at 1 Y triple beam part of mass balance with top beam with pointer at 10, middle beam with pointer at 0, and lowest beam with pointer at 7 Z triple beam part of mass balance with top beam with pointer at 20, middle beam with pointer at 0, and lowest beam with pointer at 6
y = 710
z = 620
The theory of evolution has changed over time. Initially, Lamarck believed that organisms developed traits in response to a changing environment to improve their chances of survival. Later Darwin proposed that organisms that already possessed traits suitable to a changing environment were more likely to survive and reproduce.
Which of the following does not explain why the theory of evolution has changed?
A. Lamarck’s theory was discarded when new scientific information became available.
B. Darwin collected empirical evidence to support that organisms with favorable traits survived and reproduced.
C. The theory of evolution became a scientific law after much debate and confirmation in the scientific community.
D. Other scientists such as Peter and Rosemary Grant have collected additional empirical evidence that supports Darwin’s findings.
Answers
I thing is true
Use a comma with quotation marks to separate a direct quote from the rest of the sentence.
FALSE
TRUE
Answers
Answer:
TRUE
Explanation:
EG: Harry asked, "What were you doing till now?"
The planet Mars is surrounded by a number of rings
True
False
Answers
Answer:
false
Explanation:
Mars has no rings. the only planets that do are Jupiter, Saturn, Neptune, and Uranus
Answer:
Mars has no ring .
But it has 2 moons
What are the thin fibers of the human nervous system called?
tendons
nerves
spinal cord
ligaments
Answers
Answer:
nerves
Explanation:
please mark me as brainnest
Answer:
B. nerves.
Explanation:
These fibers emanate from the brain and the spinal cord and branch to every part of the body.
Can someone plz answer the two questions below plz and thank you!!!
Answers
Answer:
What questions
Explanation:
What are parts 1 and 2 of the cell?
Answers
2) chromatin
Which of the following best identifies a way in which organs in an organism are similar to organelles in a cell?
A. Both are made of tissues.
B. Both carry out specific functions.
C. Both carry out chemosynthetic reactions.
D. Both are found in single-celled organisms.
Answers
Answer:
A
Explanation:
Both are made of tissues.
The organs in an organism and organelles in a cell both are similar as they both are made up of tissue. Thus, option A is correct.
What is tissue?The tissue is defined as a group of cell added together to form a tissue present in body and plays a vital role in covering of all internal as well as external area and organs of body, hollow organs and body lines cavity.
The structure of epithelial cells are they combined together by fitted junctions as well as adhering junction and attached to extra cellular matrix.
Tissue is the compact structure of cell and later tissue combined together to form organ and than organ system is formed to perform various functions of the body.
Therefore,the organs in an organism and organelles in a cell both are similar as they both are made up of tissue. Thus, option A is correct.
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which of the following is NOT a component of carbohydrates?
Answers
Answer:
carbohydrates include carbon hydrogen and oxegen so your answer is B
Explanation: nitrogen is more common in dna bases and proteins not carbs
Among the options given, nitrogen is not a component of carbohydrates. Thus, the correct option for this question is B.
What is Carbohydrate?Carbohydrates may be defined as the type of organic compounds that generally consists of carbon, hydrogen, and oxygen. These organic compounds deliver immediate energy to the body of organisms in order to facilitate metabolic processes and reactions.
According to the context of this question, nitrogen is a component of nucleic acids, proteins, etc. but it is not present in the structure of carbohydrates. It is also involved in the building blocks of proteins known as amino acids.
Therefore, among the options given, nitrogen is not a component of carbohydrates. Thus, the correct option for this question is B.
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ANSWERRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
Answers
Can someone help me with this.
Answers
Answer:
water scarcity is harming harming animals and human life near wetlands , increasing the risk of calamities, more than half of wetlsnds have disappeared.
Increasing water scarcity means that people with already low water availability have to spend more time and effort to fetch water
Explanation:
decreasing water levels lead to droughts and lack of food thus loss of human and animal life and increased risk of calamities due to imbalance in ecosystem
Please help (*^▽^*)
Do these commenters have a point? Should extreme snowfall over the course of a season cast doubt on the theory of global climate change? Make a scientific argument explaining why you agree or disagree with these commenters.
Answers
Extreme Snowfall: Extreme snowfall is most likely the result of climate change, since ice is melting and creates higher water levels and more evaporation and precipitation as a solid, snow. Also, global climate change has been proven to be true and very common throughout the years. The temperature rises every year, everywhere, even if there is a disturbance in the continuance cycle of higher temperature. Also, every year, every day, and even every second, the ocean levels are rising as a result of glaciers melting from the increasing temperatures, also causing extreme living conditions for polar bears and other arctic animals.
How do scientists forecast the weather?
Answers
Answer:
Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models. The models use equations, along with new and past weather data, to provide forecast guidance to our meteorologists.
Answer:
rftgyhujikoloolikujyhtgrfedwsqazxcvbnmmnbvcxzxxzxzxzxzczczcxvxvxvxvxcbcbcnbcbcvnvnvnvnbmbmn
Explanation:
one product was O2 (oxygen gas). What was the evidence of this gas?
Answers
Yo can someone help me out
Answers
Answer:
I think the answer is A
Explanation:
As temperature rises, molecules move faster, so logically it would make sense that the answer would be A since the temperature rose from 10.0 to 10.7.
Explaination: the started off slow but by the end it got a lot faster
Examine the diagram of a cell. Which accurately labels the lysosome?
Answers
Answer:
x
Explanation:
Answer:
x
Explanation:
What kind of rock is it this? Sedimentary, Igneous, or Metamorphic?
Answers
Answer:
Sedimentry
Explanation:
Answer:
That honestly looks more like some type of meat then a rock but I believe it is sedimentary
Explanation:
Since the 1800's the trend of selectively breeding dogs for human desired traits became very popular. What can be a negative effect to selectively breeding dogs?
A - Dogs learn to only breed with dogs that look like them
B - Dogs can inherit traits that are negative to the dog's health.
C - Dog owners only want an attractive dog to show off
D - Dogs without the traits will become undesirable to all humans
Answers
Answer: Dogs can inherit traits that are negative to the dogs health
Explanation: because dogs have good traits they are negative to the dogs health
Example: Most selective dogs get hip problems
Which correctly lists three features that are parts of the topography of an area?
elevation, people, and relief
landforms, elevation, and weather
people, landforms, and relief
relief, elevation, and landforms
Answers
The correctly lists three features that are parts of the topography of an area is relief, elevation, and landforms.
What is topography?The field of topography focuses on the shapes as well as characteristics of land surfaces. An area's topography may apply to the actual land shapes or features or perhaps a description of them.
What is elevation?Distance above sea layer is described as elevation. Elevations are often expressed in feet and meters. Contour lines, which typically connect locations of the same height, could be used to display them on maps.
The correctly lists three features that are parts of the topography of an area is relief, elevation, and landforms.
Therefore, the correct answer will be option (D).
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Deserts are only found near the equator.
Please select the best answer from the choices provided
T
F
Answers
Answer:
False
Explanation:
Answer:
False
Explanation:
Many deserts are not located around the equator with the most common example of this being the Gobi desert. Some books even contain the information that the Arctic and the Antarctic are deserts as well and they are located on the poles.
Please answer this question, its another chance for a brainiest
Answers
Answer: Hi again, the answer is A.
Explanation:
The specific correlation of this graph tells us one thing in certainty- that A , more population leads to less water.
Have a great night!
Which two characteristics describe all organisms in the domain Eukarya?
O A. Their cells are eukaryotic.
B. Their cell walls lack peptidoglycan.
C. Their cells are prokaryotic.
D. Their cell walls have peptidoglycan.
SUBMIT
Answers
Answer:
A and B
Explanation:
Hope this helps U <3
The two characteristics that describe all organisms in the domain Eukarya are :
Their cells are Eukaryotic ( A ) Their cell walls lack peptidoglycan ( B )EukaryaEukarya is a domain which comprises of cell based oragnisms which contain nuclei or membrane organelles which are further divided into kingdoms such as Animalia and Fungi.They posses Eukaryotic cells and their cells walls lack peptidoglycan.
Hence we can conclude that The two characteristics that describe all organisms in the domain Eukarya are :
Their cells are Eukaryotic Their cell walls lack peptidoglycan.Learn more about Eukarya : https://brainly.com/question/13969093
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A student is studying a gray pine (conifer/gymnosperms), an apple tree and an avocado tree. After conducting research about them she discovers some similarities and differences between them. What are some of the differences and similarities she probably discovered? (Hints: think about how they reproduce)
Answers
List 3 negative impacts does plastic pollution have on the ocean?
Answers
Ingestion
And suffocation
Answer:
Negative physical impact on marine life, chemical impact on the water, and transport of native species.
Explanation:
Negative physical impact on marine life:
Plastic can be dangerous to creatures living in the ocean. Marine animals can fatally swallow plastic, become entangled in it, and even become physically impaired for the rest of their life.
Chemical impact on the water:
Plastics carry chemicals such as PCBs and DDT that can invade the water and cause harm to marine ecosystems.
Transport of native species:
Plastic can carry organisms from one part of the ocean to a relatively remote area. By introducing new organisms to an ecosystem, the flow can be disrupted and result in major consequences.
What is the least amount of cells an organism can have and still be considered living?
Question 2 options:
1
3
5
more than 5
Answers
Answer:
1
Explanation:
because according to Robert hooke,unicellular organisms have one cell and are considered living things
Match the terms to the definition.
Question 1 options:
The idea of that the Earth and planets orbit the sun. A sun-centered view.
Huge clusters of stars, gas, and dust bound by the force of gravity.
A group of objects that orbit a star.
Jupiter, Saturn, Uranus, Neptune. Gas giants.
The spinning of a planet on its axis, causing day and night.
The orbit of a planet around the sun. On Earth, one year.
Mercury, Venus, Earth, Mars. Terrestrial, rocky.
A force of attraction that keeps planets orbiting the sun.
A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
The theory the universe came forth from a single spot in an enormous explosion.
1.
Big Bang
2.
Doppler Effect
3.
Nebula
4.
Solar System
5.
Geocentric theory
6.
Heliocentric theory
7.
Gravity
8.
Galaxy
9.
Rotation
10.
Revolution
11.
Inner planets
12.
Outer planets
13.
Meteor
14.
Meteorite
15.
Meteoroid
Answers
1. Big Bang:- The theory the universe came forth from a single spot in an enormous explosion.
3. Nebula:- Huge clusters of stars, gas, and dust bound by the force of gravity.
4. Solar System:- A group of objects that orbit a star (Sun)
6. Heliocentric theory:- The idea that the Earth and planets orbit the sun. A sun-centered view.
7. Gravity:- A force of attraction that keeps planets orbiting the sun.
8. Galaxy:- Huge clusters of stars, gas, and dust bound by the force of gravity.
9. Rotation:- The spinning of a planet on its axis, causing day and night.
10. Revolution:- The orbit of a planet around the sun. On Earth, one year.
11. Inner planets:- Mercury, Venus, Earth, Mars. Terrestrial, rocky.
12. Outer planets:- Jupiter, Saturn, Uranus, Neptune. Gas giants.
13. Meteor:- A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
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The solar system consists of many planets, moons, stars, asteroids, comets, and meteoroids, which itself is a part of the milky way galaxy. Beyond this are millions of galaxies that constitute the universe.
Big Bang is the theory the universe came forth from a single spot in an enormous explosion. Solar System is a group of objects that orbit a star. The heliocentric theory is the idea that the Earth and planets orbit the sun, a sun-centered view. Gravity is a force of attraction that keeps planets orbiting the sun.
Galaxy is a huge cluster of stars, gas, and dust bound by the force of gravity. Rotation is the spinning of a planet on its axis, causing day and night. Revolution is the orbit of a planet around the sun. On Earth, one year. The inner planets are Mercury, Venus, Earth, and Mars. Terrestrial and rocky. Outer planets are Jupiter, Saturn, Uranus, Neptune, and Gas giants.
Meteor is a rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
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How does the tidal force affect the water and beaches on Earth?
Answers
Answer:
it makes the water level go up and down
Which of the following organelles is the largest - the chloroplasts, the mitochondria, or the lysosomes?
Please help! I would really appreciate it.
Answers
Answer:
Chloroplast
Explanation:
Chloroplast is the largest organelle present in the cell.
Answer:
Chloroplast
I hope this helps!
It is theorized that the continents on Earth were once joined together,
forming a supercontinent called Pangaea. How long ago did Pangaea
exist? How were the continents of Africa and South America arranged in
relation to each other? Describe one piece of evidence to support their
relationship. Write your response in complete sentences
Answers
Answer:
Pangea existed many millions of years ago in many opinions, but it started back in the late Paleozoic Era until the very late Triassic. Pangea first began to be torn apart when a three-pronged fissure grew between Africa, South America, and North America. Scientists have found fossils of similar types of plants and animals in rocks of similar age. These rocks were on the shores of different continents. This suggests that the continents were once joined. For example, fossils of Mesosaurus, a freshwater reptile, have been found both in Brazil and western Africa.
Explanation:
Answer:
Pangaea is believed to have existed around 335 million years ago during the late Paleozoic and early Mesozoic eras.
During this time, the continents of Africa and South America were joined together as part of the supercontinent Pangaea. They were located in the southern hemisphere, with Africa to the east and South America to the west.
One piece of evidence to support their relationship is the similarity of plant and animal fossils found on both continents. Fossils of the ancient reptile Mesosaurus have been found in both Africa and South America, indicating that the two land masses were once connected. The distribution of fossils of other plant and animal species also suggests that Africa and South America were once part of the same landmass.
The theory of Pangaea and continental drift was first proposed by Alfred Wegener in the early 20th century, and it has since been supported by a range of geological and paleontological evidence. The movement of the continents has had a profound impact on the evolution of life on Earth, as it has created new habitats and allowed for the evolution of new species in isolation.
Water from the soil is absorbed by a plant. Eventually, it ends up in the air as water vapor. List the parts of the plant that it passes through on this journey.
Answers
Answer:
Root hair -> rootstem -> xylem -> veins -> leaf -> stomata
Explanation:
Root hair -> rootstem -> xylem -> veins -> leaf -> stomata