Recycling programs, especially for aluminum cans, have become very successful because it requires only ________ of the energy needed to make a can from bauxite ore
A) 40% B) 5% C) 20% D) 10% E) 55%
Answer: B
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The German Meteor expedition, which explored the South Atlantic, was the first to use what innovation in depth
profiling? a. Deep-sea drilling b. Remotely operated vehicle c. Echo sounder d. Nuclear submarine e. Global Positioning System
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What will be an ideal response?
The stratospheric ozone layer is important to ecosystems because it ________
A) absorbs and scatters UV light B) keeps atmospheric gases balanced C) keeps the temperature of Earth stable D) provides the air we breathe E) ensures lakes and oceans do not lose water
Should the government subsidize recycling programs, even if they operate at a loss?
a. Yes. It is worth it to increase recycling. b. Yes, because I’d get more money from bringing in recyclable materials. c. No. Subsidies are never a good idea. d. No. I don’t recycle anyway.