Match each soil horizon to the description of its formation
horizon A
parent material barely affected by soil
formation process
horizon
undergoes the most change, barely
resembles parent material
Oooo
accumulation of organic material
horizon B
decomposed organic material mixes with
highly weathered parent material
horizon
A-Decomposed organic material mixes with highly weathered parent material
B-Undergoes the most change, barely resembles parent material
C- Parent material barely affected by soil formation processes
O- Accumulation of organic material
A-Decomposed organic material mixes B-Undergoes the most change C- Parent material barely affected by soil formation processes D-Accumulation of organic material
How does soil form?Natural erosive and weathering forces transform rocks, their parent material, into them. Water, wind, gravity, temperature change, chemical reactions, living beings, and pressure changes degrade parent material.
Why is the formation of soil crucial?The elements that contribute to soil formation have a big impact on soil fertility. Nutrients are continuously taken out of and given to soil over the course of soil formation. The amount and type of nutrients that the soil can naturally deliver and hold are ultimately determined by the conditions that exist during soil formation.
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Does the environment affect the soil?(1 point)
Responses
Yes, but it only affects its particle size.
Yes, but it only affects its particle size.
No, because soil type is determined only by particle size.
No, because soil type is determined only by particle size.
Yes, it affects particle size and soil composition.
Yes, it affects particle size and soil composition.
No, because soil is the same in all environments.
Answer:
Yes, it affects particle size and soil composition.
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Drag the labels to identify whether each image mainly shows mechanical weathering or chemical weathering. Each label can be used more than once.
We can see here that identifying whether each image mainly shows mechanical weathering or chemical weathering, we have:
Image 1: Chemical weathering.
Image 2: Mechanical weathering.
Image 3: Chemical weathering.
Image 4: Chemical weathering.
What is chemical weathering?The breakdown and alteration of rocks and minerals by chemical reactions with water, gases, and other elements in the environment is known as chemical weathering.
Both the creation of new minerals and the disintegration of old minerals into smaller particles are possible outcomes of chemical weathering.
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Why is part of the Moon dark?
Answer:
because the moon rotates along with the earth so one part remains out of our sight.
Explanation:
Explain how cell division is linked to cell theory.
plssssss helppppppppppppppppppppppppppp
Please help The question is in the picture linked to this question Thank you also it's about science
How is Yellowstone National Park affected by the supervolcano that lies beneath it?
Answer:
If another large, caldera-forming eruption were to occur at Yellowstone, its effects would be worldwide. Such a giant eruption would have regional effects such as falling ash and short-term (years to decades) changes to global climate. Those parts of the surrounding states of Montana, Idaho, and Wyoming that are closest to Yellowstone would be affected by pyroclastic flows, while other places in the United States would be impacted by falling ash (the amount of ash would decrease with distance from the eruption site). Such eruptions usually form calderas, broad volcanic depressions created as the ground surface collapses as a result of withdrawal of partially molten rock (magma) below. Fortunately, the chances of this sort of eruption at Yellowstone are exceedingly small in the next few thousands of years.
Explanation:
rescorces:
https://www.usgs.gov/faqs/what-would-happen-if-a-supervolcano-eruption-occurred-again-yellowstone?qt-news_science_products=0#qt-news_science_products
others:
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5 STAR PLS
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please help me!! slides due tomorrow!!!
Answer:
that b one is nucleus dont know about the a one
pls help me will mark brainlyest :) :
Internal and External Structures
You are now going to construct an argument that plants have internal and external structures that support growth and reproduction.
Choose the internal and external structures you want to gather evidence and create a statement about.
subject: sciences
Explanation:
Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. Some structures are unique, like the long neck of a giraffe. Other structures are more common, like a heartStructure and Function: Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.
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.
List the muscular organs in the muscular system (nothing to do with other organ systems).
HOMEWORK DUE TOMMOROW!
Answer:
A whole skeletal muscle classifies as an organ of the muscular system. Each organ or muscle has skeletal muscle tissue, nerve tissue, blood or vascular tissue, and connective tissue.
The different organs in the muscular system include cardiac muscles, smooth muscles, skeletal muscles, connective tissue, nerve tissue and blood tissue Rhythmic contractions cover the heart’s wall. It is responsible for the beating of the heart. The skeletal system allows the body to extend and contract.
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How are plant and animal cells similar? please help i forgot ;^;
Answer:
plant and animal cells are very similar because they are both eukaryotic cells.
Explanation:
Answer:
They are both similar because they perform the same job, they both have a nucleus, and mitochondria. I hope this helps!
Explanation:
These days people use plastic to pay for everything. " What does the synecdoche mean in this question?
A student has two solid blocks that have different masses. The student knows that each block is composed of a pure substance, but she wants to know if the blocks are composed of the same pure substance. Which of these would best show that the blocks are composed of different substances?
A.
Both blocks sink when placed in water.
B.
Both blocks can be scratched by a piece of glass.
C.
One block conducts electricity and the other does not.
D.
One block has a greater volume than the other block.
Answer: I think the answer would be (D) because mass and volume are kinda different and If one has a different volume then it would have a different mass right?
Which of the following describes a joint?
a. connects bone to muscle
b. helps bones move in different directions
c. connects muscle to cartilage
d. connects bone to skin
What would happen to your body if your sodium level is too high? too low?
Describe in detail the effects of both extremes on the body and what doctors must do to correct it. Can either be life-threatening - how?
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Answer:
Too much sodium in the diet can lead to high blood pressure, heart disease, and stroke. It can also cause calcium losses, some of which may be pulled from bone. Hyponatremia is a condition characterized by low levels of sodium in the blood. Its symptoms are similar to those caused by dehydration. In severe cases, the brain may swell, which can lead to headaches, seizures, coma, and even death.
In the human body, which of the following is considered an external defense in the prevention of disease? Mucous O Histamines O Antibodies O Fever
Answer:
I believe it would be Mucous
Explanation:
Since Histamines and Antibodies are chemicals that are inside a human body they are not an external defense. Also, a fever can only happen if the disease gets inside the body, thus its not an external defense. All this leaves only one option out and that is Mucous.
Answer:
Mucous
Explanation:
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
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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List 3 negative impacts does plastic pollution have on the ocean?
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.
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The Sun transforms nuclear energy into electromagnetic energy. Plants transform electromagnetic energy into chemical energy in a process called photosynthesis. Explain whether this entire process is an example of a single transformation or multiple transformations.
Answer:
By absorbing the sun’s blue and red light, chlorophyll loses electrons, which become mobile forms of chemical energy that power plant growth.
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Research Metamorphosis. Find out more about complete and incomplete metamorphosis in animals. Do research in your library, online, or using home encyclopedias. Find one animal that undergoes complete metamorphosis and one that undergoes incomplete metamorphosis. Write a two paragraph report about each animal and include a diagram of the organisms life cycle.
Anwer:
An Insect.
An invertebrate animal with 6 legs and an exoskeleton. They breathe through holes in their exoskeleton and reproduce by laying eggs which then undergo either complete or incomplete metamorphosis until they reach adulthood.
Question 1
Fossils are preserved remains or traces of living things
True
False
Question 2
The Fossils record documents the diversity of life forms.
True
False
Question 3
A ___________________ is someone who studies fossils and other things that lived long ago.
a
Biologist
b
Paleontologist
c
Anthropologist
d
Geologist
Question 4
The fossil formed when an animal walked in mud long ago and then the mud hardened into rock.
a
trace
b
true form
c
mold
d
cast
Question 5
Most fossils are found in ______________ rock
a
Metamorphic
b
Igneous
c
Sedimentary
d
Obsidian
Question 6
Which of the following statements is true?
a
Fossils tell only about animals lived on land and water
b
Fossils tell only about plants and animals that lived on the land
c
Fossils tell about land and water plants and animals
d
tell only about plants and animals that lived in the water
Question 7
A paleontologist finds a fossil of a fish on a mountain. She can infer that the area was once
a
Underwater
b
A desert
c
Much colder
d
Much warmer
Question 8
Which of the following is true about fossils?
a
Most dead animals and plants form fossils.
b
All dead animals and plants form fossils
c
About half of dead animals and plants form fossils.
d
Only a small amount of dead animals and plants form fossils.
Question 9
Under the right conditions, sunlight and lightning can change those chemicals into molecules similar to those found in living cells.
True
False
Question 10
The oldest rocks contain complex and simple organisms
True
False
Fossil fuels are preserved remains of animals and plants. They record documents of diversity of life forms. Paleontologists are people who study about fossils.
What are fossils?Fossils are decomposed plants and animals. They can be the preserved remains or traces of living things. Thus the first statement is correct. The second statement that they record documents the diversity of life forms is correct since, by studying fossils we can find which types of living things were there in an area.
The people who study on fossils are called Paleontologists. The fossil formed when an animal walked in mud long ago and then the mud hardened into rock is an example of trace fossils. Most fossil are found in sedimentary rocks.
Fossils tell about both land and water plants and animals. A paleontologist finds a fossil of a fish on a mountain. She can infer that the area was once underwater. Not every but most dead animals and plants form fossils.
No condition can change chemical molecules of a fossils into that in living cells. The oldest rocks contains both complex and simple organisms. Thus the statement is true.
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Scientists think modern green algae and plants are descended from ancient green algae that lived in the oceans. What are similarities between modern green algae and plants? (Select the 4 that apply.)
Answer:
Explanation:
They both contain similar chlorophyll(a and b)
They both have a 2-part life cycle
they both have the same cell walls
They both store energy as starch
Explain how energy is conserved even though the amount of energy available decreases as you move up the pyramid.
Answer:
in the explanation part
Explanation:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
A heterozygous for height pea plant is crossed with a homozygous recessive for height pea plant. What is the punnet square?? Please answer quickly!!!
Pls help
What traits did you use to separate the items into two different phyla?
Cyanobacteria, also known as blue-green algae, are a kind of bacteria found in many lakes. These organisms make their own food through photosynthesis. Small animals including mayfly larvae eat the cyanobacteria, and small fish such as yellow perch eat the larvae. The small fish provide food for larger fish, such as walleye.
Describe a model you could use to show the transfer of energy within the lake ecosystem. In your description of your model, make sure you include the position of each organism identified in the paragraph.
Answer:
the transfer of energy in a lake ecosystem is a food web. In this model, the cyanobacteria are at the bottom and they are eaten by mayfly larvae. which is the larvae and then eaten by small fish like yellow perch, which are in turn eaten by larger fish such as walleye. The food web would be represented by arrows, showing the flow of energy from one organism to another. Each organism has a specific position in the food chain, with producers at the bottom and top predators at the top. This model demonstrates how energy is transferred through different levels .
Explanation:
Cyanobacteria, formerly known as blue-green algae, are photosynthetic microscopic organisms that are technically bacteria. They were originally called blue-green algae because dense growths often turn the water green, blue-green or brownish-green.
Cyanobacteria are aquatic and photosynthetic, that is, they live in the water, and can manufacture their own food. Because they are bacteria, they are quite small and usually unicellular, though they often grow in colonies large enough to see. They have the distinction of being the oldest known fossils, more than 3.5 billion years old, in fact! It may surprise you then to know that the cyanobacteria are still around; they are one of the largest and most important groups of bacteria on earth.
Which of these diseases is not caused by improper disposal of sewage?
A. Cholera
B. Heart Attack
C. Jaundice
D. Typhoid