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Oceanography Midterm Review
Test Description: Oceanography Semester 1 Exam Review
Instructions: Answer all questions to get your test result.
1) The process of calculating one's current position by using a previously determined position, or fix, and advancing that position based upon known or estimated speeds over elapsed time and course is known as-
A
Celestial Navigation
B
Taking a Reading
C
Dead Reckoning
D
Live Reckoning
2) How large was the area that the Polynesians settled?
A
40,000,000 km2
B
120,000,000 km2
C
400,000,000 km2
D
140,000,000 km2
3) The Longitude Act of 1714 was created due to a disaster where the British lost an entire fleet of ships due to which navigational tool being read wrong?
A
Octant
B
Clock
C
Sextant
D
Compass
4) A 300 mile “dead zone” now extends into the Gulf of Mexico where the Mississippi River enters at New Orleans. This is most probably caused by —
A
the recent hurricanes
B
the toxic runoff
C
global warming
D
an algal bloom
5) Populations of most oceanic fish have decreased over 90% in the last 100 years due to —
A
Carbon Dioxide emissions
B
nuclear power plant emissions
C
degradation of habitat
D
overfishing by human populations
6) What is making the Shad’s migratory movement difficult?
A
Dams
B
Dead zones
C
Pollution
D
Lack of food
7) Which of these is a producer?
A
Oysters
B
Veined Rapa Whelk
C
Nutria
D
Algae
8) Which of these is not an invasive species in the Bay?
A
Snakehead Fish
B
Mitten Crab
C
Flathead Catfish
D
Striped Bass
9) Which two diseases are harming Oysters in the Bay?
A
Lyme and Chickenpox
B
MSX and Dermo
C
Black Spot Disease and Shell Rot
D
Dropsy and Enteric Flesh Rot
10) This invasive species can eats 25% of its weight in one day
A
Snakehead Fish
B
Ospreys
C
Nutria
D
Oysters
11) Which commercial fishery has been virtually lost in the Chesapeake Bay?
A
Shad
B
Oysters
C
Menhaden
D
Crabs
12) In 2008, poultry farms located just on the Delmarva Peninsula produced how much manure?
A
150 million pounds
B
1.5 billion pounds
C
1.5 million pounds
D
100,000 pounds
*select an answer for all questions
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