Why does water vapour generally decrease with height?
Answer and explanation
Correct answer: Because its main sources are near the surface and water bodies
Most atmospheric water vapour enters the air through evaporation from oceans, lakes and soil, and through transpiration by plants; these sources are concentrated near Earth’s surface. As moist air rises, it generally cools, causing condensation and removal of vapour as cloud droplets or precipitation. Hence option A is correct. The other statements incorrectly describe gases or ozone.
Frequently asked questions
What is the correct answer to this question?
Because its main sources are near the surface and water bodies
Why is this the correct answer?
Most atmospheric water vapour enters the air through evaporation from oceans, lakes and soil, and through transpiration by plants; these sources are concentrated near Earth’s surface. As moist air rises, it generally cools, causing condensation and removal of vapour as cloud droplets or precipitation. Hence option A is correct. The other statements incorrectly describe gases or ozone.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
