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Why isn't the earth's atmosphere mostly hydrogen?



a. Earth formed too close to the Sun for any planetesimals to have hydrogen.

b. All the hydrogen was blasted away during the early bombardment stage of the solar system.

c. Light gases such as hydrogen move faster than heavier gases and escape from the earth's gravitational field.

d. The hydrogen is frozen in the polar ice caps.

e. All the hydrogen reacted with oxygen and formed the oceans.

2007-03-25 13:18:36 · 5 answers · asked by sy 2 in Science & Mathematics Earth Sciences & Geology

5 answers

c and e are both reasonable answers. e explains where the hydrogen went, and c explains why it doesn't accumulate in the atmosphere. d is clearly not the answer.

2007-03-25 13:33:10 · answer #1 · answered by Isaac Laquedem 4 · 0 1

Hydrogen is only a small part of our atmosphere. That is because hydrogen is the lightest element in existence. The Hydrogen is able to pass through our atmosphere because of it being so light. So both C&E are concievable answers.

2007-03-25 13:39:45 · answer #2 · answered by Anonymous · 0 0

that's not usually hydrogen and helium. ninety 9% of the earth's surroundings is produced from nitrogen and oxygen. Hydrogen and helium blended do not even make up one ten-thousandths of a % of the ambience.

2016-12-19 13:49:58 · answer #3 · answered by ? 4 · 0 0

for sure not e , because at the very begining there wasnt any oxygen in the atmosphere ..

i think its a ..

2007-03-26 00:22:33 · answer #4 · answered by Geo06 5 · 0 0

C although all but D are possible.

2007-03-25 13:25:15 · answer #5 · answered by Mike1942f 7 · 0 0

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