The part of the earth from the equator to the North Pole is called

The imaginary half circle that passes through Greenwich in London is taken as

The 23 ½ degree South latitude is called

The earth takes certain path round the sun, this is called

What is the length of the orbit?

The part from the prime longitude to the 180 degree east longitude is called

The equator is designated on the

The size of the moon decreasing every 15 days and again increasing for the next 15 days is called

How many time the earth take for one rotation in its on axis?

The combined conditions of the temperature, water vapour present in the atmosphere, the weight of the air , and the clouds at a particular place is called