Question

Why the temperature of Venus is about ${450}^{\circ }C$?

• A. Period of rotation is 243 days
• B. Atmosphere of Venus is mainly made of carbon dioxide
• C. Period of revolution is 225 days
• D. Density of Venus is $5.2gc{m}^{-3}$

Answer 1

The correct option is B Atmosphere of Venus is mainly made of carbon dioxide

Atmosphere of Venus is mainly made of carbon dioxide. This carbon dioxide blocks infrared radiations from escaping out of Venus's surface and thus heat is trapped inside. This makes the temperature of Venus about ${450}^{\circ }C$.