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9 Cards in this Set
- Front
- Back
What is density |
How much matter is in an object |
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When do you use a line graph |
Change over tine |
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When do you use a pie graph |
For percentages |
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When do you use a bar graph |
Info by counting |
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How often do solar maximums occur |
11 years |
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What are convection currents |
Transfer of heat through water |
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What causes high phosphate, nitrate, dissolved oxygen, and pH |
Animal waste, human sewage, photosynthesis, and algae |
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Runoff recharges |
Surface water |
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Saturation |
Recharges aquifers |