Which of the following properties makes plastic an increasingly abundant component of oceanic flotsam and very damaging to the marine environment?
A) They are dense, so they sink and concentrate at the sea floor.
B) They are durable causing them to last almost indefinitely.
C) They are expensive and used sparingly.
D) They are weak, so entangled marine organisms can break free.
E) They cannot be recycled so they must be disposed after use.
B
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Hundreds of thousands of children under 6 years of age go blind each year because of a lack of iron.
Answer the following statement true (T) or false (F)
Which of the following are frequently associated with plate boundaries?
A) karst geomorphology only B) volcanism only C) earthquakes only D) both volcanism and karst geomorphology E) both earthquakes and volcanism.
The main "type" of water that plants use is termed ________
A) vadose B) artesian C) hydroscopic D) capillary E) aquiclude
____________________ approaches attempt to reduce the environmental impact of solid waste without reducing the amount of waste produced; ____________________ approaches attempt to reduce waste and use what we do produce as resources.
Fill in the blank(s) with the appropriate word(s).