Soil

What happened to the Aral Sea when water was diverted for farming?

• It started to shrink.

• It turned into a forest.

• It became a popular tourist spot.

• It grew larger.

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What is the 'flour' in the soil cake analogy?

• Water

• Humus

• Air

• Parent material

Which layer of soil is known for being rich in nutrients and organic material?

• O horizon

• B horizon

• A horizon

• C horizon

What is the process called when calcium carbonate forms a hard layer in soil?

• Podzolization

• Eluviation

• Calcification

• Lateralization

Why is soil conservation important?

• To make soil taste better

• To prevent soil from becoming too colorful

• To stop soil from being lost faster than it can form

• To make soil harder