What is humus?

Important Questions on Soil: A Natural Resource

EASY

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 9 - Soil: A Natural Resource>ASSESSMENT ZONE>Q F

Write the importance of topsoil.

EASY

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 9 - Soil: A Natural Resource>ASSESSMENT ZONE>Q F

Explain E-horizon of soil profile.

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 9 - Soil: A Natural Resource>ASSESSMENT ZONE>Q F

How many types of soils are there based on size of particles?

EASY

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 9 - Soil: A Natural Resource>ASSESSMENT ZONE>Q F

List two soil-friendly farming practices.

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 9 - Soil: A Natural Resource>ASSESSMENT ZONE>Q G

Explain the process of soil formation.

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 9 - Soil: A Natural Resource>ASSESSMENT ZONE>Q G

What is soil pollution? How is it caused?

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 9 - Soil: A Natural Resource>ASSESSMENT ZONE>Q G

How are microbes present in soil beneficial to it?

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 9 - Soil: A Natural Resource>ASSESSMENT ZONE>Q G

One needs to frequently dig up soil in garden or pots. Why do you think it is important? Also overwatering the plants often kills them. Why should this practice be avoided? Explain.