general knowledge

Topics: Ozone depletion, Solar cell, Greenhouse gas Pages: 31 (6028 words) Published: September 27, 2013
100 questions worth 2 marks each = total 200 marks.
Penalty for wrong answer= Minus 0.67 (=1/3rd of the mark allotted to correct answer.) time limit 2 hours
If you cannot solve some of these question, don’t get demotivated. In UPSC there will be always some question from outside of what you’ve prepared, but you’re not required to tick 100/100 to crack prelims. Question 1 to 20

1. Which of the following concepts can be used to study the rate of acceleration of the Universe? 1. Supernovae Explosions.
2. Dark Matter.
3. Dark Energy.
4. Black Holes.
A. 1 & 3 only.
B. 1 & 2 only.
C. 2, 3 & 4 only.
D. 1, 3 & 4 only.
1. Which of the following can be a trigger for Coral Bleaching? 1. Increase in ocean temperature.
2. Decrease in ocean temperature.
3. Decline in Zooplankton levels.
4. Changes in salinity.
5. Elevated sea levels due to global warming.
A. All except 2.
B. All except 2 & 4.
C. All except 5.
D. None of the above options are correct.
1. The Basel Convention on the Control of Trans boundary Movements of Hazardous Wastes and Their Disposal, usually known as the Basel Convention: 1. It is an international treaty that was designed to reduce the movements of hazardous wastes from developed to less developed countries. 2. It does not address the movement of radioactive waste.

A. 1 only.
B. 2 only.
C. Both.
D. None.
1. Which of the following statements are correct with regard to Red tide – a term used to describe Harmful Algal Blooms (HABs) in marine coastal areas. 1. These blooms are not associated with tides.

2. HABs tint the seawater to a reddish color.
3. Not all algal blooms are harmful, even those involving red discoloration. A. 1 & 3 only.
B. 1 & 2 only.
C. 2 & 3 only.
D. 1, 2 & 3.
1. Which of the following statements is/are correct:
1. Ozone Depletion causes reduction in stratospheric and upper tropospheric temperatures. 2. Increase in Green House Gases causes reduction in stratospheric and upper tropospheric temperatures. A. 1 only.

B. 2 only.
C. Both.
D. None.
1. Which of the following statements is/are correct with regard to Ozone Depletion: 1. Ozone hole is measured in terms of ozone concentrations, which is expressed in Dobson units. 2. The major cause for Ozone Depletion is the presence of CFCs in stratosphere – CFCs are entirely man made and not found naturally. A. 1 only.

B. 2 only.
C. Both.
D. None.
1. Which of the following statements is/are correct with regard to Vitamin D: 1. Vitamin D is produced in the skin by ultraviolet light.
2. Higher levels of Vitamin D are associated with higher morbidity. 3. Body has no mechanism to prevent sunlight from producing too much Vitamin D. A. 1 & 3 only.
B. 1 & 2 only.
C. 2 & 3 only.
D. 1, 2 & 3.
1. If the Arctic Ice was somehow replaced with dense forest, which of the following situation may arise: A. It will accelerate Global Warming.
B. It will decelerate Global Warming.
C. It may or may not affect Global warming.
D. It will have no affect on Global Warming.
1. Recently Chinese scientists have developed Carbon Aerogel. Which of the following is/are correct about it: 1. It is the second lightest material after Graphite aerogel. 2. It has excellent elasticity.

3. It is expected to play an important role in pollution control. 4. It is expected to become ideal material for sound absorption. A. 2, 3 & 4 only.
B. 2 & 4 only.
C. 1 & 3 only.
D. 1, 2, 3 & 4.
1. Lantana – know as Phool Lakhri in local parlance is a shrub found in abundance in Himachal Pradesh. Which of the following statements are correct about it? 1. It is a toxic weed and has affected the mountain diversity of the state. 2. Lantana species are widely cultivated for their flowers.

3. It is endemic to India.
4. It is considered as potential fire hazard and it is combustible even when green. A. 1, 2 & 4 only.
B. 2 & 4 only.
C. 1 & 3 only.
D. 1, 2, 3 & 4.
1. Which of the following statements are correct about C & Ku Band that are used for satellite...
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