The portion of the atmosphere that filters out 95 percent of the incident UV radiation is the
A) ozone layer.
B) stratosphere.
C) troposphere.
D) aerosol layer.
E) particulates.
Answer: A
Physics & Space Science
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The farthest planet of our Solar System is ________.
A. Uranus B. Mars C. Jupiter D. Neptune
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A laser beam takes 24 ms to be reflected from the surface of a planet. How far from the laser source is this planet's surface?
A) 24 × 105 m B) 12 × 105 m C) 18 × 105 m D) 36 × 105 m E) 48 × 105 m
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Blue light will not eject electrons from a certain metal; however, which one of the following may possibly eject electrons from that metal?
a. infrared b. ultraviolet c. red d. green
Physics & Space Science
A force exerted by an object does not influence that same object; it only influences the other object on which it is exerted
Indicate whether the statement is true or false
Physics & Space Science