1. Whats the source of clouds except human pollution, i mean was there clouds before industrial age?

2. Was total amount of clouds less ~1000 years ago (or earlier)?

3. How fast clouds disapear comparing how fast they appear?

4. What matter they usually consist of?

1. Whats the source of clouds except human pollution, i mean was there clouds before industrial age?

2. Was total amount of clouds less ~1000 years ago (or earlier)?

3. How fast clouds disapear comparing how fast they appear?

4. What matter they usually consist of?

What a strange question!

Clouds consist of liquid or frozen droplets of water (depending on altitude) and are the result of the Sun heating the Earth's surface. That cause the water to evaporate and rise through the atmosphere until it reaches a temperature cold enough to condense on a small particle of matter - like dust - that is called a nucleant.

They've been around for millions of years. Their appearance/disappearance rate depends entirely on the temperatures and humidity of the regions the air mass is moving through.

http://www.vivoscuola.it/us/rsigpp3202/umidita/lezioni/formation2.GIF

http://www.vivoscuola.it/us/rsigpp3202/umidita/lezioni/form.htm

They teach this stuff in Elementary school.. :shrug:

http://en.wikivisual.com/images/9/94/Water_cycle.png

They teach this stuff in Elementary school.. :shrug:


Indeed! Which is precisely why I precluded my reapons with the statement: "What a strange question!!". I would have expected anyone old enough to know how to type and use a computer to have learned that LONG ago!