atmosphere and properties

Q7. What is soil erosion?

• A naturally occurring process that affects all land forms

• Type of soil

• A time period

• The wearing away of top soil

What is deposition?

• The movement of sediment

• The breaking of sediment

• The dropping of sediment

Small pieces of rock that have been weathered from a larger rock are known as...

• sand

• sediment

• soil

What is soil?

• It is the loose material in which plants can grow in the upper layer of Earth.

• It is the leaf that grows on the plant.

• It is the food that can be found inside the seed.

True or False: Soil takes very little time to form.

• True

• False

How does wind weather a rock?

• The wind slowly drills a hole in the side of a rock.

• The wind smashes big rocks against each other.

• The wind shakes the big rock and makes it weak.

• The wind blows tiny pieces of rock against a big piece of rock. The tiny pieces slowly break the big piece.

What can help protect against wind erosion?

• Rocks

• Sand

• Plants

• People

Which layer of soil is on the bottom?

• topsoil

• subsoil

• bedrock

• bottomsoil

Soil's one of the Earth’s most valuable resources. Everything on Earth depends on soil somehow.

• True
• False

Identify the picture.

• embankment

• step farming

• afforestation

• deforestation