Biodegradable plastics may incorporate ________ to speed breakdown processes.
A. Weak structural components
B. Water
C. Cornstarch
D. Special types of hydrocarbons
E. Microscopic tears in the plastic
Answer: C
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Pelagic organisms live in water above the sea floor. Indicate whether the statement is true or false
An echo sounder operates by measuring the time required for a ________
A) sound pulse travels from a ship to the seafloor and back B) radar beam to travel from a harbor patrol boat to a fuzz-buster on a speeding yacht C) light beam to travel from a satellite at a known altitude to the sea bottom and back D) radar beam to travel from a ship to the seafloor and back
The presence of which of the following hastens evaporation?
A) Warm water B) Cold air C) Rising air D) Already humid air E) Slow-moving air
Identify and describe three principles that can be used to guide environmental policy makers as they craft guidelines that minimize environmental harm.
What will be an ideal response?