UPSC Prelims 2013 Environment & Ecology Questions

Ancient History 2 Art & Culture 9 Economy 16 Environment & Ecology 19 Geography 13 Indian Polity 16 Modern History 6 Science & Technology 16 Social Issues & Schemes 3

Question 13 Medium

Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss? 1. Hard and waxy leaves 2. Tiny leaves or no leaves 3. Thorns instead of ...

Question 14 Medium

Which of the following adds/add nitrogen to the soil? 1. Excretion of urea by animals 2. Burning of coal by man 3. Death of vegetation Select the correct answer using...

Question 15 Easy

Acid rain is caused by the pollution of the environment by -

Question 16 Medium

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. ...

Question 17 Easy

In the grasslands, trees do not replace the grasses as a part of an ecological succession because of

Question 18 Easy

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?

Question 19 Easy

With reference to food chains in ecosystems, consider the following statements : 1. A food chain illustrates the order in which a chain of organisms feeds upon each ot...