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knipp - ch. bay #1
chesapeake bay history - #1
10
Environmental Studies
7th Grade
09/10/2012

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Cards

Term
first event in Bay history
Definition
asteroid hits at mouth of Bay
Term
what started happening 18,000 years ago
Definition
ice caps started melting, sea level started rising
Term
when did native Americans arrive to the Bay
Definition
11,500 years ago
Term
when did the Bay shoreline resemble start to resemble shoreline of today
Definition
2000 years ago
Term
what crops did the native Americans grow?
Definition
corn, squash, beans, tobacco
Term
why did the Bay's rivers start to get shallow?
Definition
sediment from erosion from farming
Term
what is the name of the canal found at the northern end of the Bay?
Definition
C & D canal
Term
What is the name of the dam at the end of the Susquehanna River?
Definition
Conowingo Dam
Term
What are dermo and MSX?
Definition
diseases of the oysters
Term
what caused the native American populations to decrease
Definition
war with colonists and disease brought over by colonists
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