Jun

19

What is the background history of chlorine being used to clean our drinking water?

Filed Under Homework Help | 1 Comment

*Chrisna* asked:


Chlorine is added to drinking water to disinfect the water and make it suitable for human consumption. This has had a huge part to play in preventing diseases like cholera. However, there is also some concern that chlorine may form carcinogenic(cancer causing) compounds in water and may be toxic to humans and the environment.

1. How effective is chlorine in preventing cholera?
2. Brief history on the use of chlorine as a disinfectant in drinking water?
3. How safe is our drinking water?

Please help!
thank you xx

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Jun

18

is it bad if too many people check your driving record?

Filed Under Insurance Registration | 4 Comments

Gem asked:


for example … when looking for car insurance they check your driving record …. if i go to various places to get accurate numbers and not just quotes and they check my record is that bad? like it is when people have their credit ran too much? too many inquaires lower the socre … so can something similar happen to the driving record? i know there is no score .. but just wondering if it looks bad somehow?

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