Human Impacts
Published on Nov 28, 2015
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Over exploitation is excessive use of a species that has economic value. Humans have used many resources over the years of establishment, but the most recent would be the rhino and elephants for there tusk made of valuable ivory. Humans think it is necessary to use these organisms, but the most common reason would be to make exquisite amount of money. After these animals are harvested they are sold for medical purposes. Humans also over exploit oils and other fossil fuels. As humans destroy these animals and resources they don't realize what harm they are causing, now these animals that were being over exploited are on the endangered list near extinction.
ACID Precipitation
Photo by antonychammond
Acid precipitation is when harmful chemicals and other pollutants are evaporated into the atmosphere and condense with water and then later falls as precipitation. This happens from run-off and when people misuse the chemicals or pollutants. This form of precipitation is very dangerous not just for humans, but other organisms living in the bodies of water where these pollutants and chemicals enter there environment. The chemicals can kill all organisms in the water including fish, algae, bacteria. Animals living in an aquatic ecosystem are in great danger because it's changing there habitat. The substances can also harm organisms that don't live in the water, such as organisms that drink the water.
Photo by k6martini
BIOLOGICAL MAGNIFICATION
Biological magnification occurs when increasing concentration of toxic substances in organisms as trophic levels increase in a food web or chain. The mosquito is one example the organism has toxic poison that can cause allergenic reactions. The bee also is an example because of the toxic bee stings .The concentration of toxic substances enter the food web or chain fairly low, but as scientist study biological magnification they reveal that as the trophic levels increase the amount of toxins spreads throughout the ecosystem as well.
Photo by .sandhu
