EASY
10th CBSE
IMPORTANT
Earn 100

Draw and label the diagram:

Food chain in a pond.

Important Questions on Our Environment

EASY
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 5 - Our Environment>EXERCISE>Q 3

Draw and label the diagram:

Different layers of trophic levels.

EASY
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 5 - Our Environment>EXERCISE>Q 4

Draw and label the diagram:

Food web.

EASY
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 5 - Our Environment>EXERCISE>Q 5

Draw and label the diagram:

The flow of energy in an ecosystem.

MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 5 - Our Environment>EXERCISE>Q 6

Draw and label the diagrams:

Ozone hole in different periods.

MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 5 - Our Environment>EXERCISE>Q 1
What is an ecosystem? Describe the different components of the ecosystem.
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 5 - Our Environment>EXERCISE>Q 2
What is the food web? Describe the characteristics of the food web. How does a food web give stability to the food chains?
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 5 - Our Environment>EXERCISE>Q 3
Describe the mechanism of ozone depletion and ozone formation.
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 5 - Our Environment>EXERCISE>Q 4

Write short notes on:

Greenhouse effect.