Sign up

Teacher tutorials

Subject updates

Terms and Conditions

PDF chapter test TRY NOW

Subjects
Science CBSE
Class 9
Natural resources
Textbook questions

28. NCERT Exemplar X

Exercise condition:

3 m.

1. Soil erosion can be prevented by

raising forests
excessive use of fertiliser
deforestation
overgrazing by animals

2. What happens when rain falls on soil without vegetational cover?

Rain water does not cause any change in soil
Rain water causes loss of surface soil
Rain water percolates in soil efficiently
Rain water leads to fertility of the soil

3. Oxygen is harmful for

nitrogen fixing bacteria
Chara
ferns
mango tree

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content

Copyright © 2025 YaClass Tech Private Limited Contacts Terms and Conditions Privacy Policy