air around us

What are the properties of air?

• Air occupies space.

• It is transparent.

• Air is present everywhere around us.

• all of the above

Air around us exerts ________.

• Pressure.

• Wind.

• Heating.

• Low.

Clothes dry faster when there is ______ water vapour in air

• less water vapour

• high water vapour

• all of the above

• none of the above

The process of absorbing carbon dioxide from air and preparing the food by plants is called ______________

• transpiration

• Photosynthesis

• breathing of plants

• none of the above

Organism living in soil breathe through ______________.

• carbon dioxide in soil

• dissolved oxygen in soil

• Air present in soil

• there is no air in soil

which of the following genrates electricity through air

• water mill

• wind mill

• thread mill

• air mill

. Removal of water from plant bodies in the form of vapours is called _____

• photosynthesis

• water cycle

• transpiration

• none of the above

The layer of gases around the earth is called as _______________.

• exosphere

• mesosphere

• thermosphere

• none of the above

state true or false Nitrogen supports burning of a candle

• true

• flase

To release some of the air from the bottle shown in the given diagram, we should:

• tilt the bottle

• push the bottle

• both of them are correct