MEDIUM
10th CBSE
IMPORTANT
Earn 100
(a)
Sl No.
Column I
Column II
Column III
(i)
Secondary consumer
Herbivore
1st trophic level
(ii)
Primary consumer
Autotroph
3rd trophic level
(iii)
Producer
Carnivore
4th trophic level
(iv)
Tertiary consumer
Large carnivore
2nd trophic level
Give one example of a food chain having four organisms. Below each organism write the three appropriate terms from the part (a) above which you think it represents.
Important Questions on Our Environment
EASY
10th CBSE
IMPORTANT
What percentage of the solar energy is trapped and utilised by the plants?
MEDIUM
10th CBSE
IMPORTANT
What percentage of energy available at the producer level is transferred at successive trophic levels in a food chain? ()
EASY
10th CBSE
IMPORTANT
Name the process in which a harmful chemical enters the food chain and gets concentrated at each trophic level.
EASY
10th CBSE
IMPORTANT
In a food chain consisting of grass, frog, bird and insects, where will the concentration of the harmful chemicals be maximum?
MEDIUM
10th CBSE
IMPORTANT
If a harmful chemical enters a food chain comprising cat, mice and plants, which one of these organisms is likely to have the maximum concentration of the harmful chemical in its body?
EASY
10th CBSE
IMPORTANT
Which radiations are absorbed by ozone layer? (Infrared radiation/Ultraviolet radiations)
EASY
10th CBSE
IMPORTANT
Name the group of chemical compounds which damages the ozone layer.
EASY
10th CBSE
IMPORTANT
Name two waste materials that can be recycled.
