Daily Questions Challenge for IAS PRE (CSAT) Exam (5 May 2015)

Write and Discuss Your Answer with Q.No in Comment Box at the Bottom of Post.

1. Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere, but a lot of it does not remain in the lower atmosphere because of

1. its escape into the outer stratosphere.
2. the photosynthesis by phytoplankton in the oceans. 3. the trapping of air in the polar ice caps.

Which of the statements given above is/are correct?

(a) 1 and 2
(b) 2 only
(c) 2 and 3
(d) 3 only

2. In the contextof ecosystem productivity, marine upwellingzones are important as they increase the marine productivity by bringing the

1. decomposer microorganisms to the surface.
2. nutrients to the surface.
3. bottom-dwelling organisms to the surface.

Which of the statements given above is/are correct?

(a) 1 and 2
(b) 2 only
(c) 2 and 3
(d) 3 only

3. If a tropical rain forest is removed, it does not regenerate quickly “compared to a tropical deciduous forest. This is because

(a) the soil of rain forest is deficient in nutrients
(b) propagules of the trees in a rain forest have poor viability
(c) the rain forest species are slow growing
(d) exotic species invade the fertile soil of rain forest

4. The Himalayan Range is very rich in species diversity. Which pne among the following is the most appropriate reason for this phenomenon?

(a) It has a high rainfall that supports luxuriant vegetative growth
(b) It is a confluence of different biogeographical zones
(c) Exotic and invasive species have not been introduced in this region.
(d) It has less human interference.

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:: CSAT (Paper -2) ::

1. In a rare coin collection, there is one gold coin for every three non-gold coins. 10 more gold coins arc added to the collection and the ratio of gold coins to non-gold coins would be 1 : 2. Based on the information, the total number of coins in the collection now becomes-

(a) 90
(c) 60
(b) 80
(d) 50

2. A gardener has 1000 plants. He wants to plant them in such a way that the number of rows and the number of columns remains the same. What is the minimum number of plants that he needs more for this purpose?

(a) 14
(b) 24
(c) 32
(d) 34

3. A sum of Rs. 700 has to be used to give seven cash prizes to the students of a school for their overall academic performance. If each prize is Rs. 20 less than its preceding prize, what is the least value of the prize?

(a) Rs. 30
(b) Rs. 40
(c) Rs. 60
(d) Rs. 80

4. Out of 120 applications for a post, 70 are male and 80 have a driver’s license. What is the ratio between the minimum to maximum number of males having driver’s license?

(a) 1 to 2
(c) 3 to 7
(b) 2 to 3
(d) 5 to 7

Write and Discuss Your Answer with Q.No in Comment Box at the Bottom of Post.

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