UPSC ONLINE ACADEMY

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Q.1 Which phenomenon can occur when very warm & humid air is rising over a mass of a very cold air?

1) Calm weather

2) snowfall

3) Storms & cyclonic storms

4) Intense rain & hail

Codes:

A) 2 & 3

B) 3 & 4

C) 1 & 4

D) 1 & 2

Ans. B

 

Q.2 The waves that help scientists to understand the internal structure of the earth:

A) Primary waves

B) secondary waves

C) Surface waves

D) Longitudinal waves

Ans. A

 

Q.3 Consider the following statements:

1) Neptune planet appears blue in colour.

2) The presence of Methane gas in the atmosphere of Neptune is responsible for its colour.

Codes:

A) only 1

B) Only 2

C) Both are correct

D) Both are incorrect

Ans. B

 

Q. 4 Statements:

1) Comets revolve round the sun only in long elliptical orbits.

2) A comet develops a tail when it gets close to the sun.

Which above are correct?

A) Only 1

B) Only 2

C) Both are correct

D) Both are incorrect

Ans. C

 

Q.5 Which among the following are  correct?

1) Tsunami is small in open ocean yet may be over 30m high when it reaches a coastline.

2) Tsunamis have shorter wavelength & they travel across open ocean at high speed. As they approach shore , the wavelength increases & the wave height decreases.

3) These are different from the harbour waves.

4) Earthquake & Volcanoes are the major factor of Tsunamis.

Codes:

A) 1 & 3

B) 2 & 4

C) 3 & 4

D) 1 & 4

Ans. D

 

Q.6 statements:

1) The GOI is contemplating the establishment of the National Appraisal & Monitoring Authority to carry out environment appraisals.

2) The mean annual temperature is projected to decrease .

3) India is considered as the sixth largest emitter of the Green house gases.

Codes:

A) 1 & 2

B) 2 & 3

C) 1 & 3

D) All are correct

Ans. C

 

Q. 7 Which are considered as the Horticulture crops :

1) Passion fruits

2) Kiwi

3) Banana

4) pineapple

Options:

A) 1& 3

B) 2,3,4

C) 2 & 4

D) All are correct

Ans. D

 

Q. 8 Statements:

1) Acid Rain contains mixture of Sulphuric acid,acetic acid.

2) Acid rain is formed due to reaction of Water vapour with sulphur dioxide & nitrous oxides.

Codes:

A) Only 1

B) Only 2

C) Both are correct

D) Both are incorrect

Ans. D

 

Q.9 Which among the following is called Terrestrial planet?

A) Mercury

B) Jupiter

C) Uranus

D) Saturn

Ans. A