Why would astronomers be interested in placing a gamma ray detecting observatory in space?
A) to map high-energy electromagnetic waves from distant sources that would be blocked out or scattered by Earth's atmosphere
B) to map gamma ray emissions from radioactive elements on Earth
C) to detect nuclear weapons tests on Earth
D) to map gamma ray emissions coming from the Sun
A
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A group of metamorphic rocks that formed under broadly similar temperature and pressure conditions is a(n) ____
A)metamorphic zone B)isograd C)metamorphic facies D)contact zone E)profile
Instructions: Choose one answer from each pair of selections. Would you expect a city to the EAST or WEST of the Appalachian Mountains to experience colder temperatures after a continental polar air mass has passed?
During which era of the Historical Evolution of the U.S. City were cities compact, usually about 3-4 miles in diameter?
A) Internet era B) Electric Streetcar era C) Pedestrian/Horse car era D) Automobile era E) Freeway era
Who formulated the fundamental laws of motion?
A. Galileo B. Newton C. Aristotle D. Coriolis