1. Passage Reading
2. Verbal Logic
3. Non Verbal Logic
4. Numerical Logic
5. Data Interpretation
6. Reasoning
7. Analytical Ability
8. Quantitative Aptitude
236. (d) What might cause a series of regular increases and decreases in the amount of CO2 in the atmosphere? (Becasue the third para suggest that "longterm oscillation in the amount of CO2 present in the atmosphere, with regular temperature increases and decreases of a set magnitude")
237. (c) discussing effects that changes in the CO2 level in the atmosphere might have on climate (Because the author has given various examples of how increase of CO2 levels in the atmosphere can lead to increase in global temperature)
238. (a) at least a slight decrease in global temperatures (Because the second para suggests that "a halving of the CO2 concentration would lead only to a reduction in global temperatures of 3 degree)
239. (c) support the argument that the CO2 level in the atmosphere has a significant effect on climate (Because the author has told that venus with a high content of CO2 has a temperature of 430)
240. (d) difficult to prove that the warming was caused by the burning of fossil fuels (Because the last para suggest that burningn of fossil fuels can have regional effect and not a global effect)
241. (c) I and II only (Becasue the IIIrd statement is not correct as it is the burning of fossil fuels which has a regional effect. Other two have been very well explained in the passage)
242. (d) a generalization about the efficiency of meteorological recording stations (All the other items have been covered in the passage but nowhere meteorological recording stations has been elaborated upon)