Who was the first to circumnavigate earth?
Vasco de Gama
Christopher Columbus
Magellan
Alexander
Which is the hottest planet in the solar system?
Venus
Mercury
Earth
Jupiter
The weight of a substance is related to the effect of force of ------- on that substance.
Friction
Wind
Gravity
None of these
Polestar appears vertically overhead at the ----------- .
South Pole
North Pole
Equatorial region
None of this
Who is the Greek philosopher: Who state that the earth was in spherical shape?
Euclid
Archemides
Pythagoras
Aryabhatta
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
What is the average distance between earth and moon.
3, 80,000 km
3, 85,000 km
3,90,000 km
3,95,000 km
Which layer present in the atmosphere absorbs harmful ultra violet radiations?
Keratin layer
Ozone layer
Radiation layer
None of thes
The layer of water on the surface of Earth is called --------
Lithosphere
Atmosphere
Hydrosphere
Thermosphere