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Layers, compositions and so on.

Which is the most common gas in the atmosphere? Nitrogen - 78%
Which is the second most common gas in the atmosphere? Oxygen - 21%
Which is the most important gas for human life? Oxygen - helps us survive!
Which is the layer of the atmosphere that is closest to space? Exosphere - it extends into space.
Which is the hottest layer of the atmosphere? Thermosphere - the temperature can reach upto 2000*C
Which is the coldest layer of the atmosphere? Mesosphere - the temperature can get as low as -100*C
In which layer of the atmosphere is the Aurora found? Thermosphere.
What is responsible for the Aurora? Ions - charged particles found in the thermosphere
Which layer is responsible for destroying meteors before they reach earth's surface? Mesosphere.
Why do the meteors break apart or disintegrate in the mesosphere? They break or disintegrate due to the sudden change in temperatures and friction.
In which layer do jet streams originate? Stratosphere.
What are jet streams? Jet streams are fast moving air currents.
Which layer of the atmosphere contains the ozone layer? Stratosphere.
Why is the ozone layer important? It protects us from harmful UV radiations from the sun.
What is ozone? It is a gas.
Why do pilots fly into the stratosphere at times? They do that to avoid severe weather forming in the troposphere.
Which layer of the atmosphere do we live in? Troposphere.
What happens to atmospheric pressure as you move from the troposphere towards space? It decreases.
What happens to the temperatures in the stratosphere and thermosphere as you move towards space? It increases or gets warmer.
What happens to the temperatures in the troposphere, mesosphere and exosphere as you move towards space? It decreases or gets colder.
What does ex or exo mean? External or extending
What does therm or thermal or thermo mean? Heat
What does mes or meso mean? Middle
What does strata or strato mean? Layered
What does trop or tropo mean? Changing land (near land) or changing weather
Created by: thprabhakar