Recycling aluminum beverage cans
A. consumes more energy than making new aluminum.
B. is not effective because only 1/10 of all beverage cans are recycled.
C. consumes 1/20 of the energy required to make new aluminum.
D. None of these choices are correct
Answer: C
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Figure 11.8
What is drift-net fishing? Which letter depicts drift-net fishing on the accompanying figure?
What will be an ideal response?
The force exerted by gas molecules in the atmosphere is called atmospheric
A. temperature. B. density. C. volume. D. pressure. E. mass.
Which of the following is often indicated by a hook-shaped echo on a radar screen?
A. a thunderstorm with very frequent lightning B. the possible presence of a tornado-producing thunderstorm C. a developing hurricane D. a rotating anvil cloud at the top of a thunderstorm
Which of the following is NOT a way to form layers in a sedimentary rock?
A. occurrence of a discrete event like a flood B. a change in climate of the region C. a change in the strength of the current D. a change in the supply of sediment E. All of these are ways to form layers.