From the following which is the optimum distance between sun and earth.
150 million light year
150 million Km
1000 million light year
1000 million Km
What is the average speed of the revolution of the Moon around Earth?
3,750 Km
3,600 Km
3,700 Km
3,650 Km
One stadia is equal to -------- metres.
150
200
175
185
Which is the hottest planet in the solar system?
Venus
Mercury
Earth
Jupiter
The first attempt of estimating the size of the earth was made by whom?
Pythagoras
Hyppocrates
Eratosthenes
None of these
The layer of water on the surface of Earth is called --------
Lithosphere
Atmosphere
Hydrosphere
Thermosphere
From the following which indicates the percentage of water present on earth surface?
80%
99%
50%
71%
The layer of rocks which forms the surface of earth is called -----------
Which is the richest gas present in Earth?
Oxygen
Nitrogen
Hydrogen
Helium
Polestar appears vertically overhead at the ----------- .
South Pole
North Pole
Equatorial region
None of this