Define and provide examples of the four different groups and two classifications of marine resources. What will be an ideal response?
(1) Physical resources result from the deposition, precipitation, or accumulation of useful
substances in the ocean or seabed. Most physical resources are mineral deposits, but
petroleum and natural gas, mostly remnants of once-living organisms, are included in this
category. Freshwater obtained from the ocean is also a physical resource. (2) Marine energy
resources result from the extraction of energy directly from the heat or motion of ocean
water, including wind and current power. (3) Biological resources are living animals and
plants collected for human use and animal feed, including fish and seaweeds. (4)
Nonextractive resources are uses of the ocean in place.
Transportationofpeopleandcommoditiesbysea,recreation, and waste disposal are examples.
Marine resources can be classified as either renewable or nonrenewable: (1) Renewable
resources are naturally replaced by the growth of marine organisms or by natural physical
processes. (2) Nonrenewable resources such as oil, gas, and solid mineral deposits are present
in the ocean in fixed amounts and cannot be replenished over time spans as short as human
lifetimes
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