Question

Q1. How Is Our Atmosphere Differents From The Atmospheres On Venus And Mars ?

Q2. How Does Atmosphere Act As A Blanket ?

Q3. What Causes Winds ?

Q4. How Are Clouds Form ? ​

Answer 1

Earth’s atmosphere is a mixture of nitrogen (79%), oxygen (20%), and a small fraction of carbon dioxide, water vapours and other gases. This makes the existence of life possible on Earth. However, the atmospheres on Venus and Mars mainly consist of carbon dioxide. The amount of carbon dioxide on these planets can range from 95% to 97%. This may be the reason, no life exists in these planets.

Answer 2

1. $\implies$ Earth’s atmosphere is composed of various gases like oxygen, carbon dioxide, nitrogen, water vapour along with various gases in small quantities, hence making it a balanced composition which is more livable than other planets. Planets like Venus and Mars have more than 95% of carbon dioxide in the air making the existence of life impossible.