1996: Assertion

Carbon dioxide in air is necessary for sustaining life

Reason

Carbon dioxide is assimilated in carbohydrates in photosynthesis

(a) if A and R both are correct and R is the correct explanation of A

(b) if A and R both are correct but R is not the correct explanation of A

(c) if A is correct and R is incorrect

(d) if A is incorrect and R is correct
1997: In the context of CO2 emission and global Warming, what is the name of a market driven device under the UNFCC that allows developing countries to get funds/incentives from the developed countries to adopt better technologies that reduce greenhouse gas emissions?

(a) Carbon Footprint

(b) Carbon Credit Rating

(c) Clean Development Mechanism

(d) Emission Reduction Norm
1998: A wooden block is floating in water. If 4/5 of its volume is immersed in water and volume of the water displaced is 800 ml, the volume of the block is

(a) 1140 ml

(b) 200 ml

(c) 800 ml

(d) 1000 ml
1999: Diffusion of light in the atmosphere takes place due to

(a) Carbon dioxide

(b) Dust particles

(c) Helium

(d) Water vapours
2000: Assertion (A)

A Rainfall is scanty on the east of Western Ghats.

Reason (R)

The east of Western Ghats is on the lee side.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not the correct explanation of A

(c) A is true but R is false

(d) A is false but R is true