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Hello I'm the scientist. I'm here to help you with some background info on pollution and the bad happenings that it causes. So why don't we get started.
Each year literally tons and tons of dangerous chemicals are being legally deposited into our rivers, lakes, bays etc. Because of this we have less and less fish to eat because they can't come from these polluted waterways. From 1995 to 1996 there were a total of 2193 advisories, which prevented us from eating fish that came from these polluted places. Right now the Great Lakes and all of the rivers and canals connecting them are under those advisories.
These chemicals cannot only make us unhealthy but they can kill off the wildlife too. It can kill them directly or indirectly. It can kill them indirectly like this: lets take the fish idea, the fish in the intoxicated water gets infected, then a raccoon eats that fish and gets sick as well. After that a bear or fox can eat the infected raccoon, which ate the poisoned fish and get sick and die. The direct way is the poisonous water can be used as drinking water by an animal and then kill it.
Oil spills are very dangerous. They often cause a lot of damage to the wildlife. Animals can get stuck in it like ducks and fish and so on. You may know that on March 24, 1989 there was a huge oil spill in Alaska. The ship Exxon Valdez was damaged in a reef that was part of the Prince William Sound. It was an environmental catastrophe. Eleven million tons of crude oil seeped out of the Exxon Valdez' ruptured hull. Cleaning the giant mess up took over three years and $2.1 million. Not all cleanups are as expensive as that one but all of them are time consuming.
Well I hope that this helped you on your mission and taught you about the damage pollution can cause.
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