Enviornmental Science Ilab 1 Essay

937 Words Mar 8th, 2013 4 Pages
Environmental Science
Human Impact on Earth's Sustainable Cycles
By: Robert Faison
Nicole Diaz
Maria Fonseca

Exercise 1
Part 1
How does a class being conducted online instead of on campus increase or decrease the classes' contribution to the carbon cycle during the term?
Conducting online classes not only is time efficient but also prevents students to pollute earth. Being on campus would ask student for transportation. How will the students come from home to campus? Universities are never on walking distances therefor having a personal car or using transits such as buses or taxis is the only way to get to school. Universities hold thousands of students which mean if each student carried a personal car or used the transit that
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Like everything on Earth, its supply is finite, but for most of human history people were unaware of this limitation. Water is the essential medium for all manner of biochemical reactions playing a role in nearly environmental system. The tropical rain forest has moist soil which is a reservoir in the atmosphere of the forest.

Hydrologic Cycle

Exercise 3

Action | Increase atmospheric Nitrogen | Decrease atmospheric Nitrogen | Fertilizer for agricultural fields | | Potent greenhouse gasReaches the stratosphere where sunlight breaks it into nitric oxide, a key link in the chain of reactions that damages the Earth’s protective ozone layer. | Transportation | | Ozone, Smog, Particulates, Acid rainSee chart below | Septic tanks | | A release of large amounts of nitrogen into the environment by discharging through a drain field into the ground. Microbial activity consumes the nitrogen and other contaminants in the wastewater. | Ammonium aerosols | | It is a reactant in the atmosphere, where it acts as an aerosol, decreasing air quality and clinging to water droplets, eventually resulting in nitric acid (HNO3) that produces acid rain. Atmospheric ammonia and nitric acid damage respiratory systems. |

Local Scale * Noise and vibrations * Carbon monoxide, Odors
Smog, Nitrogen oxides, HC/VOC, Particulates, lead Sulfur dioxide, Ozone * Accidental and intentional releases * Fallouts * De-icing of infrastructure,

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