What is the main reason water vapour decreases rapidly with altitude in the atmosphere?
Answer and explanation
Correct answer: The main source of water vapour is Earth's surface and evaporation
Most atmospheric water vapour enters the air through evaporation from oceans, lakes, soil and vegetation at or near Earth’s surface. As moist air rises, it cools, condensation occurs and much of the moisture is removed through clouds and precipitation. Consequently, water vapour decreases rapidly with altitude. Option B identifies its surface-based source; A, C and D are physically incorrect explanations.
Frequently asked questions
What is the correct answer to this question?
The main source of water vapour is Earth's surface and evaporation
Why is this the correct answer?
Most atmospheric water vapour enters the air through evaporation from oceans, lakes, soil and vegetation at or near Earth’s surface. As moist air rises, it cools, condensation occurs and much of the moisture is removed through clouds and precipitation. Consequently, water vapour decreases rapidly with altitude. Option B identifies its surface-based source; A, C and D are physically incorrect explanations.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
