Posted by Shellz on December 17, 1999 at 16:47:35:
Hi,
I have juz stopped by here to ask a few questions. I hope you can help...
I need the answers very urgently...
Why is air pollution is particularly heavy in Mexico and Los Angeles?
What is haze? What are the causes of haze?
What are the effects of haze?
How can the problem of air pollution be spread to other areas?
In Singapore, how is the air quality measured?
Name any 3 organisations in Singapore that are concerned about the environment. What does each organisation do to help conserve the environment? (Include its aims, its success in conservation and its logo.)
Thankx and pls reply as soon as possible. This is an emergency...