{ Chapter 5 }

ENVIRONMENTAL SCIENCE

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Environmental scientists study ecology, geology, biology, meteorology, chemistry, physics, or engineering. Their research helps us understand how our planet is changing and how our actions may help or hurt the land, water, and air around us.

Their research can also change how politicians make laws. For example, they may take samples of water near large factories in order to measure the level of nutrients or chemicals in the water. If large amounts of dangerous chemicals are discovered in the water, the government may use that information to make new laws about how factories handle chemicals so as not to impact ...

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