the thickness of atmospheric envelope is.....km :

• 1200

• 1000

• 1500

• 500

all the atmospheric phenomena like ran , winds take place in .......layer

• first

• second

• third

• fourth

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

as the density of air increases the atmospheric pressure :

• increase

• decrease

• not changed

• none

Tags

NGSS.MS-ESS2-5

the device that used in measuring atmospheric pressure:

• ammeter

• voltmeter

• compass

• barometer

the hottest atmospheric layer is :

• thermosphere

• mesosphere

• troposphere

• stratosphere

ionosphere surrounded by two ....belt :

• electric

• ionic

• magnetic

• thermal

the charged cosmic radiation are dispersed in ..... layer:

• tropo

• iono

• meso

• stato

the ....is the region between stratosphere and mesosphere :

• stratopause

• mesopause

• tropopause

• mesopause

the rise of temp. in the stratospher due to

• absorption of u.v radiations

• it is near from sun

• burning celestial masses

• none

the ionosphere has a role in communication because of:

• reflect the sun radiation

• reflect the radio waves

• van allen belts

• aroura phenomena

Tags

NGSS.MS-PS4-2