WorksheetsClass 7 Ls Atmosphere
Total questions: 15
Worksheet time: 8mins
What gas makes up 21% of Earth's atmosphere ?
Hydrogen
Nitrogen
Oxygen
Sulphur dioxide
Which layer of the atmosphere contains Ozone ?
Mesosphere
Stratosphere
Troposphere
Ionosphere
The layer where most meteorites vaporise ?
Mesosphere
Troposphere
Stratosphere
Exosphere
Most abundant gas in the Earth's atmosphere.
Oxygen
Hydrogen
Nitrogen
Ozone
Temperature in the Stratosphere decreases as the altitude increases.
True
False
not sure
50% true
Thermosphere is also called-
Mesosphere
Exosphere
Terrosphere
Ionosphere
How high above the Earth's surface does the Stratosphere go ?
100 Kms
120 Kms
50 Kms
40 Kms
Which is the hottest layer of the atmosphere ?
Thermosphere
Mesosphere
Exosphere
Stratosphere
This layer in the atmosphere protects us from the harmful UV rays
Oxygen
Ozone
Bromine
Hydrogen
Where do satellites orbit ?
Mesosphere
Thermosphere
Ionosphere
Exosphere
Temperature in the Stratosphere increases with altitude due to
UV Radiations
Z- rays
Greenhouse Effect
Black holes
Which is the uppermost layer of the atmosphere ?
Thermosphere
Exosphere
Mesosphere
Ionosphere
This is not a Trace Gas present in the atmosphere.
Nitrogen
Carbon-di-oxide
Helium
Methane
Lot of weather changes take place in this layer.
Ionosphere
Mesosphere
Troposphere
Stratosphere
Mixture of gases and particles that surrounds a planet, held by gravity is called -
Hydrosphere
Atmosphere
Macrosphere
Microsphere
