Erosion
What is a triangular area of sediment deposited at the mouth of a river?
Delta
What is breaking down of rock on the Earth's surface?
weathering
What is a mixture of mineral particles and organic material that covers the land?
a. clay
b. soil
c. silt
b. soil
Which of the following does NOT help conserve water?
a. taking shorter showers
b. wash full loads of clothes
c. water plants in the morning
d. wash dishes by hand
What is a deep, narrow valley with steep sides formed by fast, flowing water?
Canyon
What is movement of rock from one location to another?
Erosion
Rocks that change color are a result of:
a. physical weathering
b. chemical weathering
b. chemical weathering
What is soil made of?
a. Only rocks
b. Only water
c. Rocks, minerals, organic material, air, and water
d. Only sand
c. Rocks, minerals, organic material, air, and water
What is an example of a nonrenewable resource?
a. natural gas
b. air
c. plants
d. water
a. natural gas
What is the sliding of a large mass of dirt and rock down a mountain or cliff?
Landslide
Which of the following is NOT an agent of erosion?
A. Ice B. Water. C. Wind. D. Plants
D. Plants
Which process is NOT a cause of weathering?
a. Water freezing and thawing in cracks of rocks
b. Wind blowing sand against rocks
c. Plants growing in the cracks of rocks
d. Rocks being buried underground
d. Rocks being buried underground
What is a mixture of gravel, sand, silt, clay, and organic matter?
a. gravel
b. pebbles
c. humus
c. humus
What is a resource that CANNOT be replaced?
a. inexhaustible
b. reusable
c. renewable
d. nonrenewable
d. nonrenewable
What is a landform?
a. A type of plant
b. A natural feature of the Earth's surface
c. A man-made structure
d. A weather pattern
b. A natural feature of the Earth's surface
How can plants help prevent erosion?
a. By absorbing sunlight
b. By holding the soil in place with their roots
c. By releasing oxygen into the air
d. By providing shade
b. by holding the soil in place with their roots
How does chemical weathering occur?
a. By physical forces like wind and water
b. By chemical reactions that change the minerals in rocks
c. By animals walking over rocks
d. By the sun heating the rocks
b. By chemical reactions that change the minerals in rocks
Which layer of soil is the most fertile and best for growing plants?
a. Bedrock
b. Subsoil
c. Humus
d. Sand
c. humus
Why is it important to conserve nonrenewable resources?
a. They can be easily replaced
b. They are expensive
c. They will eventually run out
d. They are harmful to the environment
c. They will eventually run out
Which of the following is an example of a landform?
a. A river
b. A desert
c. A mountain
d. All of the above
d. All of the above
What is the main difference between erosion and weathering?
a. Erosion involves the movement of materials, while weathering is the breakdown of materials
b. Weathering involves water, while erosion involves wind
c. Erosion only happens in deserts, while weathering happens everywhere
d. There is no difference; they are the same process
a. Erosion involves the movement of materials, while weathering is the breakdown of materials
Which natural feature is often created by weathering?
a. A mountain
b. A cave
c. A lake
d. A river
b. A cave
What is the main purpose of soil in an ecosystem?
a. To provide shelter for animals
b. To hold water
c. To support plant growth and provide nutrients
d. To absorb sunlight
c. To support plant growth and provide nutrients
Which of the following resources can be considered both renewable and nonrenewable, depending on how it is used?
a.Water
b.Coal
c. Sunlight
d. Trees
d. Trees
What is the main characteristic of a plateau?
a. It is a flat area at high elevation
b. It is a steep hill
c. It is surrounded by water on three sides
d. It is covered in ice
a. It is a flat area at high elevation