Question

3. How is the atmosphere of the Earth differentfrom those around the other planets?​

Answer 1

Answer:

The main difference between the Earth's atmosphere and the one of other planets (such as Venus and Mars) is that about 21% of it is composed by oxygen. ... Our atmosphere is also dense enough to generate pressure at the surface and to act as a thermal blanket.

Explanation:

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Answer 2

It is because on Earth oxygen is found , which make it unique and different from others.

Earth's Atmosphere is composed of :

78% Nitrogen

21% Oxygen

1% other gases like argon,CO2 etc.