Soil erosion and conservation

The protection of soil against erosion is called ____.

• Soil pollution

• Soil conservation

• Weathering

• Soil ploughing

The process of water or wind carrying away top loose soil is called ____________

• Flowing away

• Blowing away

• Erosion

• Conservation

Tags

NGSS.MS-ESS2-2

Soil conservation done on hill slopes _____________

• Ploughing

• Terracing

• Erosion

• All of the above

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

What is weathering?

• the process of moving sediment from one place to another
• the breaking down of rocks on Earth's surface
• the remains of decayed plants and animals

What is humus?

• the bottom layer of soil
• the largest particle that makes up soil
• remains of decayed plants and animals in the soil

Tags

NGSS.MS-LS2-1

The solid rock that forms Earth's surface is called...

• Sediment

• Bedrock

• Clay

• Sand

Human activities that increase soil erosion include

• Mining

• Overgrazing by cattle

• Afforestation

• Both mining and overgrazing by cattle

Tags

NGSS.MS-ESS3-4

Soil is mostly conserved by _______

• Afforestation

• Deforestation

• Making dams

• Overgrazing

The properties of soil

• are similar in all layers.

• are different from place to place.

• are the same in all environments.

• can only be observed with scientific equipment.

Tags

NGSS.MS-ESS2-2

Which of the following takes up approximately 50% of soil?

• Water and Humus

• Water and Loam

• Air and Loam

• Air and Water