Test your knowledge with Division B quiz stuff today! Made by a fellow Sci. Oly. Student.
---Meteorology - Composition and evolution of the Earth's atmosphere---
Different
Same
Unknown by scientists
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Carbon Dioxide (78%), Nitrogen (21%), Oxygen (0.03%), Other (the rest)
Oxygen (78%), Nitrogen (21%), Carbon Dioxide (0.03%), Other (the rest)
Nitrogen (78%), Oxygen (21%), Carbon Dioxide (0.03%), Other (the rest)
Carbon Dioxide (78%), Oxygen (21%), Nitrogen (0.03%), Other (the rest)
Oxygen (78%), Carbon Dioxide (21%), Nitrogen (0.03%), Other (the rest)
Nitrogen (78%), Carbon Dioxide (21%), Oxygen (0.03%), Other (the rest)
They were lost into space.
They changed into the current gasses.
They simply disappeared.
Unknown by Scientists.
A meteor struck the Earth around the time the gasses disappeared, resulting in them being literally 'blown' off the Earth.
Earth's gravity is not strong enough to hold lighter gases
The aliens came and took them away.
Earth still did not have a differentiated core (solid inner/liquid outer core) which creates Earth's magnetic field (magnetosphere = Van Allen Belt) which deflects solar winds.
True
False
True
False
Certain gasses in the atmosphere began to become heavier and began to fall towards the earth, turning into water.
Water first was brought here by a meteor that struck Earth, and then it began to build up.
As the Earth cooled, H2O produced by out gassing could exist as liquid in the Early Archean, allowing oceans to form.
Huge glacial deposits that existed long ago melted as ice ages began to go away.
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