The main components of the atmosphere are ...

• Hydrogen (78%), oxygen (21%) and other gases

• Nitrogen (78%), oxygen (21%) and other gases

• Oxygen (78%), hydrogen (21%) and other gases

• Carbon dioxide (78%), oxygen (21%) and other gases

The atmosphere allows life to exist on the Earth because of different reasons. Which reason is FALSE?

• It maintains an adequate temperature

• It protects from the Sun's damaging rays

• The atmosphere produces meteorites which living creatures depend on

• It has all the required gases for animals and plants

What layer of the atmosphere is the nearest to the surface of the Earth? (0-12 km)

• Troposphere

• Stratosphere

• Mesospehre

• Thermosphere

• Exosphere

What layer of the atmosphere is the second nearest to the surface of the Earth? (12-60 km)

• Troposphere

• Stratosphere

• Mesospehre

• Thermosphere

• Exosphere

What layer of the atmosphere is the farthest from the surface of the Earth? (500-2000 km)

• Troposphere

• Stratosphere

• Mesospehre

• Thermosphere

• Exosphere

What layer of the atmosphere is the second farthest from the surface of the Earth? (80-500 km)

• Troposphere

• Stratosphere

• Mesospehre

• Thermosphere

• Exosphere

What layer of the atmosphere is the third nearest the surface of the Earth, it is in the middle of the five layers? (60- 80 km)

• Troposphere

• Stratosphere

• Mesospehre

• Thermosphere

• Exosphere

The layers of the atmosphere. The  layer where meteorological phenomena take place  is the ...

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

The layers of the atmosphere. The layer that contains the ozone layer is the  ....

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

The layers of the atmosphere. In this layer  the temperatures are very low ....

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere