The process in which water changes from liquid into water vapour is called------.

Which is not a planet in the solar system?

The earth is made up of about ----% of water.

The movement of the earth around the sun in a fixed orbit is called------.

Planet Mars is also referred to as the -----.

The ----- is the most fertile type of soil for growing plants.

The ----- is the hottest season in the world.

Which is not an instrument for measuring weather?

One of the following cannot pollute the environment.

The following have gravity except one.

Which of this does not show gravity at work?

The Earth rotates on an imaginary line called the _________.

Which machine is needed to travel into space?

The second Indian-born woman to travel into space is --------.

A person who is trained to study and record weather information is called a/an ------ .

Hydroelectricity is gotten from------ .

Weathering means -------- .