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
The diameter of the moon is ______ km.
3,400 km
3,490 km
3,480 km
3,485 km
In which century the early attempt of estimating the size of the earth was made ?
First
Second
Third
Fourth
Which position does the Earth stands in terms of size in our solar system?
7th
3rd
5th
2nd
The layer of water on the surface of Earth is called --------
Lithosphere
Atmosphere
Hydrosphere
Thermosphere
The layer of rocks which forms the surface of earth is called -----------
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
Which layer present in the atmosphere absorbs harmful ultra violet radiations?
Keratin layer
Ozone layer
Radiation layer
None of thes
The presence of which factor made life possible on earth?
Oxygen
Nitrogen
Hydrogen
Helium
Which is the hottest planet in the solar system?
Venus
Mercury
Earth
Jupiter
