1. Due to improper/ indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?
1. Beryllium

2. Cadmium
3. Chromium

4. Heptachlor
5. Mercury

6. Lead
7. Plutonium

Select the correct answer using the codes given below.

2. With reference to food chains in ecosystems, consider the following statements:
1. A food chain illustrates the order in which a chain of organisms feed upon each other.
2. Food chains are found within the populations of a species.
3. A food chain illustrates the numbers of each organism which are eaten by others.

Which of the statements given above is/are correct?

3. In which of the following States is lion-tailed macaque found in its natural habitat? 
1. Tamil Nadu

2. Kerala
3. Karnataka

4. Andhra Pradesh

Select the correct answer using the codes given below.

4. Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?

5. Consider the following: 
1. Star tortoise

2. Monitor lizard
3. Pygmy hog

4. Spider monkey

Which of the above are naturally found in India?