The sun heats up the water and change it into very small drops of water called:

What can we do with air from the following?

What is all around us?

Wind blowing gently is called:

Which one is heavier?

Which of the following is not a reason for air pollution?

Which among the following cannot uproot trees?

Which among the following does not need air?

Moving air is called:

Which gas is used by plants during day?