A light-year is ________.
A) a long time
B) the distance light travels in one (Earth) year
C) a kind of super-dense star near the end of its life-cycle
D) the wavelength of electromagnetic radiation between ultraviolet and infrared
Answer: B) the distance light travels in one (Earth) year
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____________________ can be constructed to provide support to the base of a slope. They are
anchored into bedrock, backfilled with crushed rock, and provided with drain holes to prevent buildup of water pressure in the hillside. Fill in the blank(s) with the appropriate word(s).
In the United States, global climate change skeptics and deniers are largely sorted
A) along political lines. B) according to gender. C) according to income levels. D) between scientists and non-scientists.
What strategies have been adopted for reducing or eliminating the use of freons?
What will be an ideal response?
Which of the following is NOT a rock forming mineral or mineral group?
A. Clay Mineral Group B. Quartz C. Feldspar Group D. Amorphosite E. Calcite