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| to assume based on prior knowledge |
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| the area from which the water comes from and empties into a larger body of water |
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| water that flows until it reaches a drainage pipe |
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| sediment moved by water and wind |
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| where salt and fresh water mix |
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| a body of water that empties into a larger body of water |
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| man made pond for storm water |
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| The porpuse of a retension pond |
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Definition
traps sediment
traps storm water
prevents stormwater from draining into lakes or streams |
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TF
water can go through something impervious |
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TF
run-off sinks into the ground with no problem |
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TF
I live the in Chesapeake Bay watershed |
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| A meteorite hit the bay or when the last glaciers melted they flooded Susquehanna river valley |
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| Explored the Chesapeake in the early 1600's |
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| Chesapeakes water shed is blank sq. miles |
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| states in the Chesapeake watershed |
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| New York, Pennsylvania, Delaware, Maryland, West Virginia, Virginia |
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| Water in the Chesapeake is called what |
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| pollution source that is easy to see |
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| examples of point source pollution |
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Definition
| smoke stacks and pipes from IND. plants |
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| Is point source easy to regulate T/F |
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| non-point source pollution |
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| is non-point source pollution easy to regulate T/F |
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| examples of non-point source pollution |
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Definition
| fertilizers and pesticides |
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| types of pollution in the (C. Bay) |
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Definition
| acid rain, fertilizers, garbage, sediment |
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| water droplets combined with chemicals |
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| smothers fish eggs/oyster beds |
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| theyprevent flooding, provide food and shelter, and clean the water quality |
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| How does a marsh filter water |
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Definition
| the plants trap sediment and trash, plants suck up polutants |
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| How does a marsh minimise erosion |
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Definition
| the plants roots keep dirt in place and the waves slow down |
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| list features found in a marsh |
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| plants, fish, crabs, birds, plants, trash, sticks, and shallow water |
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| salinity is the amount of salt in a given area of water |
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| salinity is measured in ppt. parts per thousand |
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| Range of salinity in the chesapeake bay |
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| What 3 factors can change salinity |
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| location, time of year, water depth |
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| where are the salinity levels lowest in the bay |
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Definition
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| silinity levels determine what about organisms |
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Definition
| if they are fresh or saltwater animals |
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| the salt water is heavier that fresh water T/F |
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Definition
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| salinity is higher near the bays mouth T/F |
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| salt water sits on the top of the water T/F |
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| the susquehanna is salt water T/F |
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| the middle of the bay is brackish water T/F |
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| The bay is the nations largest estuary T/F |
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| brackish water is very uninhabited by animals T/F |
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| The C and D canal is near the mouth of the bay |
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| the James river is above the York river T/F |
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| ppt stands for parts per thousand T/F |
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| the average ppt. in the bay is 2 ppts. T/F |
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| the bays oyster population is great T/F |
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| the marshes of the bay are being replanted T/F |
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| trash from Saint Pauls School cound never make it to the bay T/F |
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| the bays animal population is under major harvesting pressure T/F |
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