Minerals that are vital to defense and modern technology are ________
Fill in the blank(s) with correct word
strategic
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Although the scale on an altimeter indicates altitude, an altimeter actually measures which of the following?
A. temperature B. pressure C. humidity D. density
The newest bonanza for recycling scarce and toxic metals is to recover them from ________
A) car batteries B) e-wastes such as computers C) construction dump sites D) compact discs, LPs and 8-track tapes E) landfills from the 1960s
The Earth's largest mass extinction coincides with ________ in Siberia.
A. a significant climate change B. a massive meteorite impact C. expansion of glaciers D. flooding of continental areas E. massive volcanism
The grinding and shaping of rock surfaces by the "sand blasting" action of particles captured in the air is termed
A) traction. B) deflation. C) abrasion. D) saltation. E) deposition.