Term
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Definition
97.5% Earth’s water resides in Oceans
(too salty for drinking/crops)
Only 2.5% considered Fresh water
(water with few dissolved salts).
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Term
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Definition
| Aquatic equivalent of biomes |
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Term
Rivers and Streams
Watershed |
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Definition
| area of land drained by a river and its tributaries |
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Term
Rivers and Streams
Floodplain |
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Definition
| areas that a river floods periodically |
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Term
Rivers and Streams
Riparian |
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Definition
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Term
Rivers and Streams
Tributary |
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Definition
smaller river flowing into larger one
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Term
Lakes and Ponds
Littoral Zone |
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Definition
| nutrient rich, edges of water body |
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Term
Lakes and Ponds
Limnetic Zone |
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Definition
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Term
Lakes and Ponds
Profundal Zone |
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Definition
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Term
Lakes and Ponds
Benthic Zone |
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Definition
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Term
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Definition
| systems that combine elements fo fresh water and dry land |
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Term
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Definition
| shallow water, rich vegetation |
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Term
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Definition
| shallow water, rich vegetation, occur in forested area |
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Term
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Definition
| ponds covered with thick floating mats of vegetation |
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Term
WATER POLLUTION AND ITS CONTROL
Thermal Pollution |
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Definition
water's ability to hold oxygen decreases with temperature rise
- Water returned after use to cool industrial facility transfers heat into water
- Removed vegetation cannot shad water to cool it.
- Drops in temps can cause problems too.
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Term
WATER POLLUTION AND ITS CONTROL
Indicators of Water Quality |
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Definition
- Biological properties
- Chemical properties
- Physical characteristics
- Temperature
- Color
- Turbidity
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Term
WATER POLLUTION AND ITS CONTROL
Groundwater Pollution |
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Definition
Retains its pollutants until they decompose
(harder to treat than surface water) |
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Term
WATER POLLUTION AND ITS CONTROL
Legislative Efforts to Reduce Pollution |
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Definition
i. Clean Water Act of 1977
1. Made it illegal to discharge pollution from a point-source w/out a permit
2. Funded construction of sewage treatment plants
ii. Releases of seven toxic chemicals have been reduced by 71%
iii. Conditions can improve when citizens push their government to take action
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Term
WATER POLLUTION AND ITS CONTROL
Treat our Drinking Water |
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Definition
i. Filtered with sand, gravel, charcoal/disinfected with chlorine to remove over 80 drinking water contaminants
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Term
WATER POLLUTION AND ITS CONTROL
Wastewater
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Definition
| Wastewater: water used by people (carrying sewage, from showers, sinks, washing machines, dishwashers, used in manufacturing and cleaning processes by businesses and industries and stormwater runoff |
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Term
WATER POLLUTION AND ITS CONTROL
Wastewater: Primary Treatment
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Definition
| physical removal of contaminants |
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Term
WATER POLLUTION AND ITS CONTROL
Wastewater: Secondary Treatment
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Definition
stirred and aerated (aerobic bacteria degrade organic pollutants)
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