Exploring Soil Formation and Its Role in the Biosphere

What is the main focus of this video?

• Water cycle

• Salt formation

• Plant growth

• Soil formation

Tags

NGSS.MS-ESS2-4

Which of the following is NOT a component of soil?

• Plastic

• Organic matter

• Minerals

• Gases

Why is soil considered 'alive'?

• It contains living organisms

• It moves constantly

• It changes color

• It grows plants

Tags

NGSS.MS-LS2-3

What determines the color of soil?

• The amount of sunlight it receives

• The bedrock or parent rock beneath it

• The amount of water it holds

• The type of plants growing in it

Which type of bedrock produces lighter soil?

• Basalt

• Granite

• Sandstone

• Limestone

How long does it take to produce an inch of topsoil?

• 50 years

• 100 years

• 500 years

• 1000 years

Tags

NGSS.MS-ESS2-2

What is the top layer of soil called?

• Parent rock

• Topsoil

• Subsoil

• Bedrock

What percentage of the world's carbon emissions is stored in soil?

• 5%

• 20%

• 10%

• 15%

Which of the following is a way humans damage soil?

• Planting trees

• Using organic compost

• Adding too many fertilizers

• Reducing pesticide use

Tags

NGSS.MS-LS2-5

What is overgrazing?

• Planting too many crops

• Allowing too many animals to graze on the land

• Building too many structures on the land

• Using too much water for irrigation

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-5