Which of the following helps us to breath?

Our legs and arms are called

___________ is an input device.

Number of bones in our body:

A _____________ is land with relatively low relief that is flat or gently rolling.

_____________ is a landscape or region that receives low rainfall.

__________ is known as brain of computer.

____________ looks like a television screen.

______________ are large land form that stretches above the surrounding land in a limited area usually form of a peak.

We smell with our