Term
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Definition
| dynamic relation of water between the oceans, atmosphere, ice and snow, plus surface and ground water |
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Term
| What is the water use in the US |
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Definition
46% Industrial
46% Agricultural
8% Municiple |
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Term
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Definition
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Term
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Definition
| characteristics of freshwater including biological, chemical and physical properties |
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Term
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Definition
| characteristic of seawater including biological chemical and physical properties |
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Term
| What is the average bond length of a covalent O-H bond? |
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Definition
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Term
| What is the average bond length of a hydrogen bond? |
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Definition
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Term
| What is a good estimate of bond strength? |
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Definition
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Term
| At what temp is water most dense? |
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Definition
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Term
| Why does water expand when it freezes? |
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Definition
| Water expands when it freezes because of the lattice 4:1 H:O hexagonal occurence that makes it less dense than liquid water |
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Term
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Definition
| the ability to allow ions to exist singularly |
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Term
Properties of Water:
High dielectric constant |
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Definition
Environmental effect:
-able to ionize substances
-increase solubility
-increase mobility |
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Term
Properties of Water:
High surface tension |
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Definition
Environmental effect:
-Results from h-bonding
-governs drop and surface phenomena |
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Term
Properties of Water:
Excellent solvent |
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Definition
Environmental effect:
Transport nutrients
transport waste product in infrastructure |
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Term
Properties of Water:
Max density at 4C |
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Definition
Environmental effect:
-Ice floats, prevents lakes from freezing solid
Stratifies lakes |
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Term
Properties of Water:
high heat of evaporation
liq->vapor |
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Definition
Environmental effect:
-Temp stabilization at phase change |
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Term
Properties of Water:
High latent heat of fusion |
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Definition
Environmental effect:
-Temp stabilization at phase change |
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Term
Properties of Water:
High heat capacity
1 cal per gram per degree |
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Definition
Environmental effect:
-Stabilizes water temp to avoid shock
-Stabilizes geographic regions
-provides stable environment for aquatic organisms |
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Term
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Definition
| deep clear lakes, Low amounts of nutrients. low bioactivity |
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Term
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Definition
| more nutrients, supports some life, and more turbid |
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Term
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Definition
| shallow lakes, abundant plant life, colored water |
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Term
| What does colored water indicate? |
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Definition
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Term
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Definition
| Shallow enough for plant roots |
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Term
| What do wetland systems do? |
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Definition
| Toxic remediation of metals by plants |
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Term
| Explain solubility of gases in water. |
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Definition
| Solubility of gas is inversely proportional to temperature |
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Term
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Definition
| more nutrients, supports some life, and more turbid |
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Term
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Definition
| shallow lakes, abundant plant life, colored water |
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Term
| What does colored water indicate? |
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Definition
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Term
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Definition
| Shallow enough for plant roots |
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Term
| What do wetland systems do? |
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Definition
| Toxic remediation of metals by plants |
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Term
| Biochemical oxygen demand (BOD) |
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Definition
| the amount of dissolved oxygen that must be present in water in order for microorganisms to decompose the organic matter in the water, used as a measure of the degree of pollution. |
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Term
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Definition
| A landscape that is characterized by numerous caves, sinkholes, fissures, and underground streams. Usually forms in regions of plentiful rainfall where bedrock consists of carbonate-rich rock that is easily dissolved. |
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Term
| Explain krast topography in Florida |
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Definition
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Term
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Definition
-capacity to accept H+
-Generallt high [dissolved solids] and high pH |
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