43% of the commercial energy used in the U.S. is unnecessarily wasted.
Answer the following statement true (T) or false (F)
True
The unnecessary part is caused by the use of inefficient motors and processes.
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Why is oxygen usually an oxidizing agent?
A. It is a very electronegative element. B. It likes to be oxidized. C. It does not undergo reduction. D. It is very abundant and so it is easier to react than nitrogen. E. all of the above
Semiperipheral regions
A) currently include Japan and Scandinavia. B) often exploit peripheral regions. C) will eventually evolve to become core regions. D) are geographically located between core regions and peripheral regions.
What is the specific form of mass wasting illustrated here?
A) point bar B) rockslide C) avalanche D) cutbank
What is the parent rock of the metamorphic sample displayed?
A) Limestone B) Quartz sandstone C) Shale D) Granite