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Human Impact
By Jackson Cowherd (Waste (Food Waste (Decomposing to CO2)…
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The presence of bacterial indicators suggests that the water may be contaminated with untreated sewage and pathogenic bacteria or viruses may potentially be present.
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Water pollution is the contamination of water bodies. This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
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Toxic pollution is contaminated water, soil, and air that is harmful or poisonous. It includes industrial wastes like toxic heavy metals from mining or chemicals from factories, and also sewage and particulates from power plants.
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Sediment pollution is dirt, minerals, sand, and silt eroded from the land and washed into the water. It comes from areas where there is inadequate vegetation to slow runoff.
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Air pollution occurs when harmful substances including particulates and biological molecules are introduced into Earth's atmosphere
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A gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
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The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.
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Waste are unwanted or unusable materials. Waste is any substance which is discarded after primary use, or it is worthless, defective and of no use. Examples include municipal solid waste, hazardous waste, wastewater, radioactive waste, and others
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The science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products.
About Coral Reefs: 
Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals. Coral reefs are built by colonies of tiny animals found in marine water that contain few nutrients.
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Coral Reefs can be hurt by mankind, or naturally. For instance:
Polluting the oceans
Netting
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Sometimes we can hurt it without us controlling it. For instance:
Storms (Not linked to global warming)
Lionfish
Diseases
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