Question : The acceleration due to gravity at the equator

Option 1: is less than that at poles

Option 2: is greater than that at poles

Option 3: is equal to that at poles

Option 4: does not depends upon earth's centripetal acceleration.

Question : Tides are caused by the gravitational pull of the

Option 1: Earth on the Moon

Option 2: Earth on the Sun

Option 3: Sun and Moon on the Earth

Option 4: Moon on the Earth

Question : Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by:

Option 1: Carbon dioxide

Option 2: Ammonia

Option 3: Chlorine

Option 4: Ozone

Question : Even after sunset, the air near the Earth's surface continue to receive heat due to

Option 1: Isolation

Option 2: Terrestrial Rediation

Option 3: Conduction

Option 4: Convection

Question : Select the most appropriate option that can substitute the underlined segment in the given sentence. If there is no need to substitute it, select 'No substitution'.

The moon is Earth's only natural satellite and the nearby large celestial body.

Option 1: the near largest

Option 2: the nearest large

Option 3: No substitution

Option 4: the nearly large