1. With reference to Neem tree, consider the following statements:
- Neem oil can be used as a pesticide to control the proliferation of some species of insects and mites
- Neem seeds are used in the manufacture of biofuels and hospital detergents
- Neem oil has applications in the pharmaceutical industry
Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
2. Which one of the following is the process involved in photosynthesis?
(a) Potential energy is released to form free energy
(b) Free energy is converted into potential energy and stored
(c) Food is oxidized to release carbon dioxide and water.
(d) Oxygen is taken, and carbon dioxide and water vapour are given out
3. If you walk through the countryside, you are likely to see some birds stalking alongside the cattle to seize the insects disturbed by their movement through grasses. Which of the following is /are such bird/birds?
- Painted Stork
- Common Myna
- Black-necked Crane
Select the correct answer using the code given below.
(a) 1 and 2
(b) 2 only
(c) 2 and 3
(d) 3 only
4. Lichens, which are capable of initiating ecological succession even on a bare rock, are actually a symbiotic association of
(a) algae and bacteria
(b) algae and fungi
(c) bacteria and fungi
(d) fungi and mosses
5. Which of the following phenomena might have influenced the evolution of organisms?
- Continental drift
- Glacial cycles
Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
6. In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
(1) Iris scanning
(2) Retinal scanning
(3) Voice recognition
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
7. Consider the following diseases
(1) Diphtheria
(2) Chickenpox
(3) Smallpox
Which of the above diseases has/have been eradicated in India?
(a) 1 and 2 only
(b) 3 only
(c) 1, 2 and 3
(d) None
8. Consider the following pairs
| Vitamin | Deficiency Disease |
| Vitamin C | Scurvy |
| Vitamin D | Ricket |
| Vitamin E | Night Blindness |
Which of the pairs given above is/are correctly matched?
(a) 1 and 2 only
(b) 3 only
(c) 1, 2 and 3
(d) None
Learn more: UPSC CSE Prelims -Ecology and Environment Questions and Answers 2014
Answers:
1. (c) 1 and 3 only
2. (b) Free energy is converted into potential energy and stored
3. (b) 2 only
4. (b) algae and fungi
5. (c) Both 1 and 2
6. (d) 1, 2 and 3
7. (b) 3 only
8. (a) 1 and 2 only