MEDIUM
10th CBSE
IMPORTANT
Earn 100

Write the harmful effects of ozone depletion.

Important Questions on Our Environment

MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 5 - Our Environment>Short Answer Type Questions>Q 33
What would happen if the ozone layer in the atmosphere completely disappears?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 5 - Our Environment>Long Answer Type Questions>Q 34
With the help of a flow diagram, describe how energy from the sun flows through various trophic levels.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 5 - Our Environment>Long Answer Type Questions>Q 34
Explain why the flow of energy in the ecosystem is said to be unidirectional?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 5 - Our Environment>Long Answer Type Questions>Q 35
What is ozone? How is it formed?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 5 - Our Environment>Long Answer Type Questions>Q 35
How does ozone layer protect us from harmful effects in the environment?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 5 - Our Environment>Long Answer Type Questions>Q 35
What is UNEP? What step has been taken by UNEP in 1987 to prevent too much damage to the ozone layer?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 5 - Our Environment>Long Answer Type Questions>Q 36
How is energy introduced into the ecosystem?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 5 - Our Environment>Long Answer Type Questions>Q 36

Consider the following food chains :

(i) Plants → Mice → Snakes → Hawks

(ii) Plants → Mice → Hawks

If energy available at the producer level in both the food chains is 100 J, in which case will hawks get more energy as food and by how much? Justify your answer.