Science Activity

the pressure exerted by air on all bodies at all times in all directions is called

• air pressure

• low pressure area

• winds

• water vapour

balloons float in the air due to

• cool air

• nature of gases present inside

• hot air

• variation in the climate

which of the following statement is wrong with respect to air

• air moves from low pressure area to high pressure area

• air exerts pressure

• air expands on heating

in what direction does air exert pressure?

• everywhere

• no where

• there is no pressure

• downwards

which is not a property of air?

• It has volume

• it is not matter

• it has pressure

• it can move

which property of air is shown in the image?

• air exerts pressure

• air is needed for burning

• air has weight

• air has mass

Orissa was hit by a cyclone with wind speed of 200 km/h on

• 19th of October 1999

• 18th of October 1999

• 17th of October 1999

• 16th of October 1999

moving air is called

• wind

• storm

• cyclone

• tornadoes

Orissa was hit by another cyclone at the speed of

• 160km/h

• 190km/h

• 278km/h

• 260km/h

the cyclone of Orissa made ........... people homeless

• 8,00,000

• 7,00,000

• 6,00,000

• 5,00,000