Movement of Earth on its axis is called:
- (A) Revolution
- (B) Rotation
- (C) Translation
- (D) Illumination
- (B) Rotation
Copernicus gave his radical theory of universe in:
- (A) 1540
- (B) 1543
- (C) 1547
- (D) 1549
- (B) 1543
Which element is found in the highest quantities in the crust of the Earth?
- (A) Carbon
- (B) Silicon
- (C) Oxygen
- (D) Sodium
- (C) Oxygen
What is the rotation time period of the Earth?
- (A) 23 hours, 50 minutes and 4.09 seconds
- (B) 23 hours, 52 minutes and 4.09 seconds
- (C) 23 hours, 54 minutes and 4.09 seconds
- (D) 23 hours, 56 minutes and 4.09 seconds
- (D) 23 hours, 56 minutes and 4.09 seconds
The word “Blood Moon” is used for:
- (A) Lunar eclipse
- (B) Full moon
- (C) Solar eclipse
- (D) Half moon
- (A) Lunar eclipse
Moon is a _______.
- (A) Comet
- (B) Star
- (C) Planet
- (D) Satellite
- (D) Satellite
If there is no sun, the color of the sky would be:
- (A) Blue
- (B) Orange
- (C) Yellow
- (D) Black
- (D) Black
If there is no atmosphere, the color of the sky will be:
- (A) White
- (B) Colorless
- (C) Black
- (D) Brownish
- (C) Black
The time taken by light (average) to reach the earth is:
- (A) 6 minutes 30 seconds
- (B) 8 minutes 15 seconds
- (C) 9 minutes 30 seconds
- (D) 9 minutes 55 seconds
- (B) 8 minutes 15 seconds
Which element is found in the lowest quantities in the crust of the Earth?
- (A) Calcium
- (B) Magnesium
- (C) Carbon
- (D) Aluminum
- (B) Magnesium