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Showing posts from November, 2017

Bioaccumulation

Bioaccumulation is when harmful substances accumulate in an ecosystem. This could be really be dangerous. An example of one of this harmful substances are pesticides. When an organism absorbs one of this harmful substances it could accumulate in it. Once another organism eats the organism that absorbed the harmful substance let's say a pig. WE might eat the pig that got the harmful substance and give it to us. It could seriously make us unhealthy. Using less pesticides would help the environment.

Greenhouse Effect

Greenhouse effect helps keep our planet from being very cold. How does it do this? The greenhouse effect is caused by greenhouse gasses like carbon dioxide. Some sunlight is absorbed by the sun. Some is reflected back to space. Some sunlight that is reflected is caught by greenhouse gasses which helps warm the earth. Having the right amount of greenhouse gasses is important. Because having too many will warm the earth too much. While less greenhouse gasses means earth is getting warmed less.