Human Impact on Soil

The picture show different soil layers. Which layer most likely contains the most rocks and least of organic matter?

• W

• X

• Y

• Z

Which soil horizon sample is most likely correct?

• 
• 
• 

On the diagram shown, which layer contains the majority of the bacteria, fungi, worms, and other organic matter?

• W

• X

• Y

• Z

The land around Georgia's coastal island beaches has sandy soil. Sandy soil has a lot of

• clay and leaves.

• rocks and minerals.

• worms and organic matter.

• decomposed organic matter.

Which describes what soil is made of?

• small minerals and large rocks

• small sandy particles and large stones

• weathered trees and decomposed leaves

• weathered rocks and decomposed organic material

Why is the top layer of soil most likely different from deeper layers of soil?

• The top layer is thicker.

• The deep layers are thinner.

• The top layer contains more organic matter.

• The deeper layers have more organic matter.

Can overgrazing of farmland cause erosion?

• No, because when animals eat all of the plants, they re-seed and grow more plants.

• No, because when animals eat all of the plants, they fertilize the land and soil.

• Yes, because when animals eat all of the plants the farmers can not grow any more plants.

• Yes, because when animals eat all of the plants, the soil can get blown away by the wind.

Tags

NGSS.MS-ESS3-4

We can help protect soil by doing which of the following?

• Crop rotation

• Conservation tillage

• Genetically modified crops

• All of the above

Tags

NGSS.MS-LS2-5

The top layer of soil is called ______.

• topsoil

• subsoil

• bedrock

When a rock gets broken down into soil, this process is called ______.

• topsoil

• water capacity

• weathering

• erosion

Tags

NGSS.4-ESS2-1