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By- Madison & Laurel! Environmental Scientists uses their knowledge of the earth's physical makeup and history to protect the environment.
 * The main thing environmental scientists do is eliminate hazards for humans, wildlife, and their environments.
 * how they eliminate hazards are by observing food, water, air, and soil.
 * Environmental Scientists use this this knowledge to waste disposal sites, reserve water supply, and contaminated land.

Steps to becoming an environmental scientist:
 * 1) First you have to get an undergraduate degree within the field.
 * 2) Bachelor Degree in life of earth science.
 * 3) Volunteer for an environmental organization, like the World Environmental organization.
 * 4) Earn a master's degree or Ph. D. in the field
 * 5) Find an internship or job in your specialization.

Sources- [] http://www.ehow.com/how_2069046_become-environmental-scientist.html