Click to Get updated NTA UGC NET CS Test Series           Study Material for UGC NET Computer Science- 2019

# Earth - Section 1

31:

Days and nights are equal throughout the globe when Sun is above

 A. Poles B. Tropic of Cancer C. Equator D. Tropic of Capricorn Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Write your comments here:
32:

The mean distance between the distances on perihelion and aphelion (in millwn'km.) is

 A. 111 km B. 149.5km C. 159 km D. 168.5km Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
33:

The crust forms what percentage of the volume of the earth?

 A. 0.5% B. 2.5% C. 7.5% D. 12.5% Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. Write your comments here:
34:

Variation in duration of day and night is due to
1. rotation of earth on its axis
2. revolution of earth round the sun
3. inclination of earth atan angle of 66 1/2

 A. 1 and 2 B. 2 and   3 C. 1 and 3 D. 1,2 and 3 Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
35:

The moon is called a satellite of the earth because

 A. it is much 'smaller than the earth B. it revolves round the earth C. it draws light froth the sun via the earth D. it remains in position due to the gravitational pull of the earth. Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:

X