The atmospheric layers

The Troposphere ............

• organizes the earth temperature

• contains about 75% of the mass of the atmospheric air

• Reaches till 50 km above the sea level

• Air moves horizontally in it

.......... is used in determining the possible day weather

• Thermometer

• Aneroid

• Altimeter

............ is used in aeroplanes to measure the elevation of navigation based on the atmospheric pressure

• Thermometer

• Altimeter

• Antimeter

• Aneroid

The movement of air in the Troposphere is .................

They are two magnetic belts surrounding the ionosphere

• Aurora phenomenon

• Van Allen belts

• Ionosphere

• Tropopause

................ layer is very important in wireless communications

.................... layer contains only limited quantities of helium and hydrogen gases only

• Troposphere

• Mesosphere

• Stratosphere

• Thermosphere

Meteroids burn in the .............. layer

.......... layer has the highest temperature

............. is a phenomenon that appears as brightly coloured light curtains seen at both poles of the earth