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Gravel pits affect the environment is many ways. Unless the land is reclaimed, erosion is a major concern along with ground and surface water contamination, dust contamination, and damage to the local wildlife and vegetation.
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why dont you check your book
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percipitation erosion volcanoes
If you are referring to how food becomes contaminated then there are three types of contamination and two ways in which it can occur. The 3 types of ways food can be contaminated is by Physical Contaminants: Chemical Contaminants: Contamination of food through a chemical based product such as bleach Biological Contaminants: Contamination from microorganisms such as, yeast, parasites, viruses, bacteria and mold The 2 ways in which food can be contaminated is through Direct Contamination: contamination of food from the original place it was produced, ie. salmonella on chicken, Cross-Contamination: when food is contaminated from one food to another through a non-food object. Ie Apple is contaminated because you did not wash your hands( non food object) after cutting raw chicken.
three ways in which self-conceptcan affect behavior.1> subconscious mind2>non confident3>self motivated
UV rays, pollution, natural disasters
It can put a reccesion or inflation.
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what are three ways that people have changed the land in our country
Polluting waterDisposing of toxic wastePolluting air