2011 Prelims Paper 1 UPSC Question Paper

2011 Prelims Paper 1 UPSC Questions

21.

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

B.

2 only

C.

2 and 3 only

D.

3 only

ANSWER :

B. 2 only

22.

In the context of ecosystem productivity, marine upwelling zones are important as they increase 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 only

B.

2 only

C.

2 and 3 only

D.

3 only

ANSWER :

B. 2 only

23.
If the tropical rain forest is removed,it does not be regenerate quickly as 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.
ANSWER :
A. The soil of rain forest is deficient in nutrients.
24.
The himalayan range is very rich in species diversity.Which one among the following is the most appropriate reason for this phenomenon?
A.
Β It has high rainfall that supports luxuriant vegetative growth.
B.
It is a confluence of different bio-geographical zones.
C.
Exotic and invasive species have not been introduced in this region.
D.
It has less human interference.
ANSWER :
B. It is a confluence of different bio-geographical zones.
25.

With reference to India, consider the following Central Acts.
1. Import and Export (Control) Act,1947.
2. Miniing and mineral development (Regulation) Act,1957.
3. Customs Act,1962.
4. Indian Forest Act,1927. Which of the above Acts have relevance to/bearing on biodiversity conservation in the country?

A.

1 and 3 only

B.

2,3 and 4

C.

1,2,3 and 4

D.

None of the above acts.

ANSWER :

C. 1,2,3 and 4

26.
Karl Marx explained the process of class struggle with the help of which one of the following theories?
A.
Empirical liberalism
B.
Existentialism
C.
Darwin's theory of evolution.
D.
Dialectical materialism
ANSWER :
D. Dialectical materialism
27.
A layer in the earth's atmosphere called Ionosphere facilitates radio communication. Why? 1. The presence of ozone causes the reflection of radio waves to earth. 2. Radio waves have a very long wavelength. Which of the statements given above is/are correct?
A.
1 only
B.
2 only
C.
Both 1 and 2
D.
Neither 1 nor 2
ANSWER :
D. Neither 1 nor 2
28.
Both Foreign Direct Investment (FDI) and Foreign Institutional Investor (FII) are related to investment in a country .Which one of the following statements best represents an important difference between the two ?
A.
FII helps bring better manage- ment skills and technology, whileFDI only brings in capital.
B.
FII helps in increasing capital avaliability in general ,while FDI only targets specific sectors.
C.
FDI flows only into the secondary market,while FII targets primary market.
D.
FII is considered to be more stable than FDI.
ANSWER :
B. FII helps in increasing capital avaliability in general ,while FDI only targets specific sectors.
29.
A genetically engineered form of brinjal ,known as the Bt-brinjal, has has been developed.The objective of its is
A.
To make it pest-resistant.
B.
To improve its taste and nutritive qualities.
C.
To make it drought- resistant.
D.
To make its shelf-life longer.
ANSWER :
A. To make it pest-resistant.
30.

With reference to "Aam Admi Bima Yojana ".
Consider the following statements:
1. The members insured under the scheme must be the head of the family or an earning member of the family in rural landless households.
2. The member insured must be in the age group of 30 to 65 years.
3. There is a provision for a free scholarship for up to two children of the insured who are studying between classes 9 and 12.
Which of the statements given above is/are correct?

A.

1 only

B.

2 and 3 only

C.

1 and 3 only

D.

1,2 and 3

ANSWER :

C. 1 and 3 only