PFL I Science Chapter -7 Air and water

___________ has / have no fixed shape.

• Water

• Air

• Both 1 and 2

• None of these

The mixing of harmful things in Water bodies is known as ____________.

• Air pollution

• Water pollution

• Sound pollution

• Noise pollution

Which of the following does not show a natural water source?

• Well

• Water tank

• River Dam

• Pond

The main use of air and water are____________.

• Breathing and drinking

• Bathing and polluting

• Blowing ballons and rafting

• Washing utensils and farming

__________ covers the major part of the Earth.

• Salty water

• Trees

• Fresh water

• Land