Light from a candle has a certain brightness 1 m away. At 2 m away its brightness is
A. one-quarter as much.
B. half as much.
C. practically the same.
D. uncertain.
Answer: A
Environmental & Atmospheric Sciences
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Answer the following statement true (T) or false (F)
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What city in the Rocky Mountain region was the site of one of the first large ski resorts in North America during the 1930s?
A) Sun Valley, Idaho B) Sugar Hill, Colorado C) Telemark, Colorado D) St. Anton, Idaho
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What kind of streamflow is present in this image?
A) Braided flow B) Laminar flow C) Turbulent flow D) Overland flow
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Earth's atmosphere became oxygen rich about 2.45 ________ years ago
A) billion B) million C) trillion D) thousand
Environmental & Atmospheric Sciences