Entrance Question

1. The Kyoto Protocol is associated with which one of the following . this one is
i. reduction in use of chlorofluorocarbons
ii. reduction in emission of greenhouse gases
iii. reduction in cutting in trees
iv. reduction in pollution of fresh water resources

2. which of the following statement about ozone layer is correct?
i. it is essential for breathing
ii. it abosrbs UV rays
iii. it is absorption in air is about 3%
iv. it is mainly responsible for global warming

3. which of the following will reach in greater amount amounts if the amount of chloroflouro carbon realeased into the air increases?

i. infrared rays
ii. x-rays
iii. gamma rays
iv. uv rays