2599894
Description
Flashcards by Caoilfhionn D, updated more than 1 year ago
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Created by Caoilfhionn D
about 9 years ago
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| Question | Answer |
| tributary | streams and smaller rivers that feed into a main river. |
| reservoir | lake that stores water for human use |
| eutrophication | a build up of nutrients in a lake |
| wetland | a land area that is covered by water during some or all of the year |
| watershed | a land area that supplies water to a river system |
| saturated zone | water zone is an area of permeable rock or soil that is totally filled with water |
| the process of applying water to areas of land to make them suitable for growing crops | irrigation |
| DESALINATION | a method of obtaining fresh water from salt water |
| concentration | the amount of one substance in a certain volume of another substance |
| hardness | a waters combination of calcium and magnesium levels |
| filteration | the process of passing water through a series of screens to allow it to go through without the larger particles |
| water pollution | the addition of any substance that has a negative effect on water |
| non-point source | A widely spread source of pollution that can’t be tied to a specific point of origin |
| point source | a specific source of pollution that can be identified |
| drought | a long period of little or no rain fall |
| flash flood | a sudden violent flood that can occur within minutes of a storm |
| kinetic energy | a form of energy an object has when it is moving |
| neap tide | a tide with the least difference between a low and high tide |
| rip current | a rush of water that flows rapidly back to sea |
| salinity | total amount of dissolved salts in a sample of water |
| frequency | the number of waves that pass a point in a certain amount of time |
| wave | the movement of energy though a body of water |
| Features of the ocean floor | continental shelf, the continental slope, the abyssal plain, and the mid-ocean ridge |
| What is upwelling? | the movement of cold water upward from the deep ocean. As winds blow away the warm surface water, cold water rises to replace it. |
| Why is upwelling important? | Upwelling brings up tiny ocean organisms, minerals, and other nutrients from the deeper layers of the water. Without this motion, the surface waters of the open ocean would be very scarce in nutrients |
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