Environmental Chemistry

2. A greenhouse gas
4. It binds to haemoglobin to form carboxyhaemoglobin.
10. Photochemical smog leads to ------ of rubber.
12. Another greenhouse gas
13. Photochemical smog is also called as --------- smog.
14. Sulphur dioxide can cause this respiratory disease.
16. Excess nitrate in drinking water can cause disease such as -------------.
17. A better alternative to tetrachloroethene used for dry cleaning.

1. The F– ions make the enamel on teeth much harder by converting hydroxyapatite into ----------------.
3. The irritant red haze in the traffic and congested places is due to oxides of ----------------.
5. Classical smog is also called as --------- smog.
6. The amount of oxygen required by bacteria to break down the organic matter present in a certain volume of a sample of water, is called Biochemical Oxygen Demand (BOD).
7. This process in which nutrient enriched water bodies support a dense plant population, which kills animal life by depriving it of oxygen and results in subsequent loss of biodiversity is known as -------
8. Layer of atmosphere with ozone layer
9. Polar ----- clouds increase the level of chlorine during winters over Antarctica.
11. Maximum Prescribed Concentration of ------- in Drinking Water is 0.005 ppm.
15. When the pH of the rain water drops below 5.6, it is called ------.