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Science- 68/87
Freshwater pollution, droughts, and floods- use for quiz 12-4!!!
| Question | Answer |
|---|---|
| water pollution | the addition of any substance that has a negative effect of the water and the living things that depend on it |
| pollutants | the substances that cause water pollution |
| point source | a specific source of pollution that can be identified |
| non-point source | a widely spread source of pollution the can't be tied to a specific point of origin |
| pesticides | chemicals intended to kill insects and other organisms that damage crops |
| DDT | a pesticide that dissolves into water and is absorbed by algae, can cause illnesses like birth defect and cancer |
| the 3 major sources of water pollution are... | human waste, industrial wastes, and chemical ruoff |
| cholera | a disease caused by bacteria in human wastes |
| chemical waste- point source | pipe with chemicals going right to a river |
| chemical waste- nonpoint source | leak out of storage bins and pollute water and soil |
| smoke and exhaust | burning oil or coal (cars, buses, factories, etc.) |
| acid rain | rain or another form of precipitation that is more acidic that usual |
| heat pollution | factories use water to cool off machinery and return it to the body of water |
| runoff from farms | water takes fertilizer to the body of water and then eutrophication happens faster |
| runoff from roads | gas, oil, ans salt go to rivers and other bodies of water |
| drought | a long period of time when there isn't enough rain |
| 2 things that can be put off until after a drought | washing your car and lawn |
| flood | when an area of land get too much water at once and overflows |
| flash flood | a sudden violent flood that occurs within a few hours or minutes storm |
| 3 ways to make barriers for a flood | dams, levees, sediments |
| dam | a wall with holes on a river used to make hydroelectricity |
| levee | deposits that build up on the sides of rivers that help control flooding |
| kinetic energy | the form of energy that an object has when it is moving |
| potential energy | energy that is stored and waiting to used |
| hydroelectric power | electricity produced by the kinetic energy of water moving over a waterfall or through a dam |
| dams- green- yes | 1)green way for energy 2) not air pollution 3) renewable 4) no carbon dioxide |
| dams- green- no | 1) fish migration 2) ruins habitats 3) floods |
| hydro power potential | water is stored up in resourvoir |
| hydro power kinetic | water moves dwon the penstock |
| hydro power mechenical | water spins turbines and electro magnet |
| hydro power electrical | elctro magnet creates elctricity which is sent to buildings |
| giardia | a disease which is gotten from people drinking water that is not clean |
| dams- good | prevents floods, hydro power, drinking from resourvoir |
| dams- bad | fish migration, floods area for resourvoir |
| order of energy for dam | potential, kinetic, mechanical, electrical |
Created by:
ipantle
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