Question

hy guys....
Anybody please tell answers of these questions:-
a) What is the main source of water upon the earth?
b) What does the air contain?
c) What are the uses of windmills?

Pls tell correct answers only.
If u don't know answer than just leave but please don't tell wrong.​

Answer 1

Explanation:

general, the chief source of water on Earth is considered as River water. About 97% of water on Earth is Saline in nature, 3% is fresh water. Out of 3% 69% is in the form of Glaciers and Ice caps; 30% is ground water and only 1% is surface source which includes rivers, streams etc

Answer 2

Answer:

a) Answer: n general, the chief source of water on Earth is considered as River water. About 97% of water on Earth is Saline in nature, 3% is fresh water. Out of 3% 69% is in the form of Glaciers and Ice caps; 30% is ground water and only 1% is surface source which includes rivers, streams etc.

b)Standard Dry Air is made up of nitrogen, oxygen, argon, carbon dioxide, neon, helium, krypton, hydrogen, and xenon. It does not include water vapor because the amount of vapor changes based on humidity and temperature.

c)From old Holland to farms in the United States, windmills have been used for pumping water or grinding grain. Today, the windmill's modern equivalent – a wind turbine – can use the wind's energy to generate electricity. Wind turbines, like windmills, are mounted on a tower to capture the most energy.

Explanation:

Hope it helps you siso