The earth is a –

Related MCQs

• Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by –
• Which layer of the earth’s atmosphere reflects back the radio waves to the earth’s surface?
• If a body weighs 12N on the surface of the earth, how much will it weigh on the surface of the moon where acceleration due to gravity is only one-sixth of that on earth's surface?
• Weight of a person at a height of 2R from the centre of the earth, where R is the radius of the earth-
• Heat from the Sun reaches the Earth by
• Earth is also known as –
• The energy that can harness heat stored below the earth's surface is known as –
• Green house effect is the heating up of the Earth's atmosphere which is due to –
• A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is –
• On planet Earth, there is no centrifugal force at the –