Temperature at the inner centre of the earth is:
4000oC
1000oC
2000oC
10000oC
Niagara falls is in the river:
Niagara
Volga
Amazon
Nile
The Moon revolves around the Earth and completes one revolution in:
29.5 days
24 hours
2 months
365 days
When Earth is closest to Sun, it is:
Winter
Summer
Spring
Autumn
The time taken by sunlight to reach the earth is:
16 minutes
3 minutes
8 minutes
Days and nights are caused by the earth's:
Rotation
Revolution
Solar eclipse
Gravitation
Shape of the earth is:
Sphere
Circle
Geoid
Spheriod
The circumference of the earth is:
40,000 kilometers
25,000 kilometers
30,000 kilometers
10,000 kilometers
The equator is:
0o degree longitude
0o degree latitude
90o latitude
90o longitude
Earth completes one revolution in:
30 days
28 days
