CBSE Class 9 Biology Natural Resources Water and Soil

Q.

Which of the following is a non-point source of pollution?



Q.

When the Sun heats a rock during daytime, it expands. What is this method of weathering called?



Q.

Which of the following are responsible for biological weathering?



Q.

Which is a factor of soil which decides the fate of the crop?



Q.

Which of the following is not a source of soil pollution?



Soil

Explain the source and requirement of water & soil by plants and animals. Cause and effect of water and soil pollution.