the threat of global warming is mainly associated with ?

1 radioactive wastes
2 use of hydroelectric energy
3 burning of fossil fuels
4 thermal pollution of lakes and rivers

8 answers

I'll be glad to check your answer.
2 or 3 >????? -_-
Hydroelectric energy is water power. It has nothing to do with global warming.
i think its number 4 .
Nope.

Please read your book.
http://www.usatoday.com/tech/science/2007-01-30-ipcc-report_x.htm
- thanksss . ^_______^
You're welcome.