The visible white light of the sun is made up of:
- (A) 3 colors
- (B) 5 colors
- (C) 7 colors
- (D) 9 colors
- (C) 7 colors
The bodyguard of the Earth is _______ that save the Earth from many comets and asteroids.
- (A) Jupiter
- (B) Uranus
- (C) Saturn
- (D) Neptune
- (A) Jupiter
In how many time zones has the world been divided?
- (A) 24
- (B) 29
- (C) 33
- (D) 39
- (A) 24
Distance between the earth and sun during winter:
- (A) Increases
- (B) Decreases
- (C) Remain the same
- (D) Fluctuates
- (B) Decreases
Distance between the earth and sun during summer:
- (A) Increases
- (B) Decreases
- (C) Remain unchanged
- (D) Fluctuated
- (A) Increases
The sunspot cycle is:
- (A) 11 years
- (B) 26 years
- (C) 49 years
- (D) 57 years
- (A) 11 years
According to science, the Earth is _______ years old.
- (A) 2.56 billion
- (B) 3.56 billion
- (C) 4.56 billion
- (D) 5.56 billion
- (C) 4.56 billion
The Earth’s mean radius is approximately:
- (A) 5,371 km
- (B) 6,371 km
- (C) 7,371 km
- (D) 8,371 km
- (B) 6,371 km
The Earth’s movement round its axis once is approximately 24 hours is called:
- (A) Spinning
- (B) Movement
- (C) Rotation
- (D) Revolution
- (C) Rotation
Only one planet in the solar system has an atmosphere which is:
- (A) Earth
- (B) Mercury
- (C) Mars
- (D) Venus
- (A) Earth