OCEAN 320 Midterm Exam
Which of the following is NOT a reported issue related to PCB in Beluga Whales in the
St Lawrence seaway?
-impaired mammary glands
-rare cancerous tumors
- heart disease
-reduced birth rate
What best describes a "Neuston" in the context of life in the ocean?
-it is a philosophy for "new age" ocean thinking
-it is s deep-sea life form found to have high levels of POP chemicals
-It is related to shallow water ecosystems
-It is part of the anatomy of Cetaceans
The current world population is near 7,765,000,000
To write this in scientific notation it would be........ 7.76 X 10x
What is the exponent or power of ten represented by the "x"
-11
-10
- 9
-7
DDT would be characterized as this kind of molecule......
-hydrogen chloride
- chlorinated hydrocarbon
-brominated hydrocarbon
-multi-phase toxin
One safeguard against undetected _______ in an area of study is to have many
different investigators or groups of investigators working in it.
- bias
-data
-truth
-knowledge
Which of the following would be considered an inference?
-surface rocks patterns that are evident after extensive geologic mapping
-a map of the subsurface of the Earth based on rock samples collected in drill cores
-observed (measured) deformation caused by moving plates
- a map of the subsurface features of the Earth based on a remote sensing tool
Please select all sources of chemical ocean pollution from the choices below (more than
1)
-silt
- petroleum
- pop's
- toxic metals