Which line is found on both sides of the line?

The Grand Canyon is located on the :

Which is the highest inert gas present in the atmosphere?

The principal copper deposits of India lie in which of the following places?

In which South American country is the Atacama Desert?

Seif is made from?

Which water stream is called by the Japanese people because of its deep blue color 'Black Stream of Japan'?

Which gas is found most in the atmosphere?