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Human Impact (Pond Ecosystem-Remember that the organisms living in an…
Human Impact
Pond Ecosystem-Remember that the organisms living in an ecosystem are broken down into categories: producers, consumers, and decomposers. A pond is a quiet body of water that is too small for wave action and too shallow for major temperature differences from top to bottom. ... As with other ecosystems, plants are the primary producers.
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Submerged plants-Submerged water plants can be divided into two main types. Underwater plants that grow with their foliage totally submerged underwater, such as Eel grass (Vallisneria). Emergent water plants with foliage both under the water and also on or above the water surface, such as Water Milfoil (Myriophyllum species).
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Emergent plants-Emergent Plants: emerge or have a large portion of their shoots, leaves or flowering structures out of the water. These include the familiar macrophytes: cattails, and also bulrushes, wild rice, sedges, bur-reed and many other graminoids.
Carbon Cycle-the series of processes by which carbon compounds are interconverted in the environment, chiefly involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
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Greenhouse Effect-the trapping of the sun's warmth in a planet's lower atmosphere due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
Greenhouse Gases-a gas that contributes to the greenhouse effect by absorbing infrared radiation, e.g., carbon dioxide and chlorofluorocarbons.
Nighttime Cooling-Night Cooling. Night cooling refers to the operation of natural ventilation at night in order to purge excess heat and cool the building fabric. A building with sufficient thermal mass, which can be exposed to nighttime ventilation, can reduce peak daytime temperatures by 2° to 3° using this strategy.
Cloud Effects at Night-At night cloud cover has the opposite effect. ... However, if clouds are present, some of the heat emitted from the earth's surface is trapped by the clouds and reemitted back towards the earth. As a result, temperatures decrease more slowly than if the skies were clear.