Which layer of soil is generally hard and packed?
bedrock
topsoil
subsoil
parent material
Answer:
Bedrock is the layer of soil that is generally hard and packed.
Keiko said the three areas where volcanoes form are at convergent, divergent, and transform plate boundaries. How should Keiko’s answer be corrected?
Hot spots should replace divergent plate boundaries.
Subduction zone should replace convergent plate boundaries.
Subduction zone should replace transform plate boundaries.
Hot spots should replace transform plate boundaries.
Answer:
Hot spots should replace transform plate boundaries.
I will give brainiest
Please no jokes or incorrect answers
Sorry if I picked the wrong subject
(20 POINTS)
he eat is he eat it for lunch
Astronomers have developed several ways to measure the vast distances between Earth and the stars and galaxies. What do you know about two of these techniques? (Choose 4)
A The A.U. is used to measure distance within our solar system.The A.U. is used to measure distance within our solar system.
B An astronomical unit (A.U.) is the average distance between the Earth and the Sun.An astronomical unit (A.U.) is the average distance between the Earth and the Sun.
C Our galaxy, the Milky Way, is about 150 light-years across.Our galaxy, the Milky Way, is about 150 light-years across.
D A light-year (ly) is the distance that light can travel in one year in a vacuum.A light-year (ly) is the distance that light can travel in one year in a vacuum.
E Astronomers measure distances to objects which are outside our solar system in light-years.Astronomers measure distances to objects which are outside our solar system in light-years.
F An astronomical unit is about 93 million kilometers.
A. The average distance between the Earth and the Sun, or A.U., is used to measure distances within our solar system.
D. Distances to things outside of our solar system are measured in terms of light-years (ly), which are the maximum distances light can travel in a year in a vacuum.
To calculate the immense distances in the cosmos, astronomers mostly employ two methods. An astronomical unit (A.U.), often known as the average distance between the Earth and the Sun, is used as a standard measurement within our solar system. One A.U. is equivalent to 150 million kilometres or 93 million miles. Within our solar system, it is used to calculate the separations between planets, asteroids, and comets. Second, astronomers use light-years to gauge distances outside of our solar system (ly). The distance that light can cover in one year in a vacuum, or 5.88 trillion miles or 9.46 trillion kilometres, is known as a light-year. We may use this method to calculate the huge separations between stars, galaxies, and other astronomical objects. As a result, astronomers employ A.U.
How can biological weathering result in chemical erosion?
Roots loosen soil and break rocks.
Large herds trample rocks and break up soil.
Plants transpire water vapor.
Bacteria release acids and other agents that break down rock.
Answer: Biological weathering only refers to weathering caused by organisms -- animals, plants, fungi and microorganisms such as bacteria. While certain forms of biological weathering, such as the breaking of rock by tree roots, are sometimes categorized as either physical or chemical, biological weathering can be either physical or chemical
Explanation:
How can humans manipulate soils? Select all that apply.
removing bedrock
changing the acidity
adding decaying material such as mulch
adding nutrients
Answer:
All of the options are correct:
Explanation:
The beach in Antibes, France, is composed of small, smooth rocks that have been worn
down by being tumbled against each other by the energy of the sea water
Physical or chemical?
Specific type of physical or chemical
Answer:
the second answer is the second answer
Abrasion can occur due to what? Select all that apply.
water
gravity
wind
altitude
Answer:
Water, gravity, and wind can all cause abrasion. Altitude is not a factor in abrasion.
Explanation:
Answer: Altitude is not a factor in abrasion. The option which is left behind is the wrong answer
Explanation:
Shanice said the three types of mountains are folded, tilted, and volcanic. How should Shanice’s statement be corrected?
fault-block should replace volcanic
lifted should replace volcanic
lifted should replace tilted
fault-block should replace tilted
Answer:
D. fault-block should replace tilted
Explanation:
The 3 types of mountains are: fold(ed), fault-block, and volcanic.
She listed tilted, which is not a main type. She did not list fault-block, so it should replace tilted.
Let me know if this helps!
Wind, water, and gravity, temperature changes, and pressure changes are all a cause of what process?
biological weathering
acid weathering
chemical weathering
physical weathering
Answer:
Wind, water, and gravity, temperature changes, and pressure changes are all a cause of physical weathering.
Explanation:
Choose the answer that describes biological weathering.
lichen growing on rocks
stone and boulders moved by water
salt crystallization forming tafoni
acid in water acting on limestone
Answer:
Acid in water acting on limestone describes biological weathering.
Explanation:
This is timed Please Help
Answer:
Answer:
1. physical
2. chemical
3. physical
4. physical
5. chemical
6. physical
7. physical
8. chemical
9.physical
10. physical
11. chemical
12. chemical
13. physical
14. chemical
15. physical
16. chemical
17. physical
18. chemical
19. chemical
20. chemical
21. chemical
Explanation:
What technology did the U.S. Geological Survey (USGS) develop to help monitor volcanic activity at the five monitoring stations in the continental U.S., Alaska, Hawai'i, and the Mariana Islands?
A.) National Seismology Center
B.) Volcano Notification Service (VNS)
C.) National Volcano Early Warning System (NVEWS)
D.) Federal Emergency Management Agency (FEMA)
What type of weathering occurs to statues when they lose their features over time due to rain?
mechanical biological
chemical biological
mechanical
chemical
Answer:
Mechanical Weathering
Explanation:
Statues are typically made of rock or some other material similar to rock. Mechanical weathering is the breakdown of rocks into smaller pieces, which is why it is a type of mechanical weathering.
When the oxygen in the air combines with the iron exposed by paint peeling off an old
bicycle, a new, red-colored, crumbly substance is formed.
Physical or chemical?
Specific type of physical or chemical
Answer:
Chemical change
Explanation:
What conditions will help build high-quality soil? Select all that apply.
low temperatures
high precipitation
high temperatures
low precipitation
What types of organisms do chemical biological weathering? Select all that apply.
sea urchins
lichens
bacteria
trees