Question

Question 1.
Suggest a food chain in which one of the trophic levels is occupied by human beings.
Question 2.
Draw the conclusion for if all the herbivores are removed from the grassland.
Question 3.
From the following list find out the organism which is likely to have maximum concentration of pesticide in its body: grass, grass- hopper, frog, snake and hawk.
Question 4.
Propose a way to dispose off vegetable peels, so that the environment is not polluted.
Question 5.
In an ecosystem, rats feed on grains. Name the trophic level to which the rats belong.
Question 6.
Name two chemicals which are responsible for thinning of ozone layer.
Question 7.
What is the function of zone in the upper atmosphere?
Question 8.
List two human- made (artificial) ecosystems.
Question 9.
Name two gases which have replaced CFCs

Answer 1

Explanation:

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