1. Fill in the missing gases (CO2, H2, H2O, N2 and SO2) in the following sentenc

Question

1. Fill in the missing gases (CO2, H2, H2O, N2 and SO2) in the following sentences regarding Venus' atmosphere. The gases may be used more than once.

____,____  ,_____      , and_____      are outgassed from volcanoes on Venus.
Venus is warmer than the Earth so_____  does not fall as rain.
There are no oceans, so_____      cannot dissolve in the oceans and remains in the

atmosphere, intensifying the greenhouse e??ect.
Ultraviolet light from the sun breaks apart som_____      molecules and _____escapes

into space.

Explanation / Answer

CO2,H2 ,N2 , andSO2 are outgassed from volcanoes on Venus.

Venus is warmer than the Earth soH2O does not fall as rain.
There are no oceans, so CO2 cannot disolve in the oceans and remains in the

atmosphere, intensifying the greenhouse e??ect.
Ultraviolet light from the sun breaks apart some H2 molecules and escapes

into space.

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