An electrically charged atom is an
A) ion.
B) isotope.
C) both of these
D) neither of these
Answer: A
Physics & Space Science
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Astronomers infer that the universe is expanding because distant galaxies all appear to ________
A) be made mostly of dark matter B) be moving away from us, with more distant ones moving faster C) rotate rapidly D) be growing in size
Physics & Space Science
Time is sometimes thought of as a fourth dimension of ______________
Fill in the blank(s) with correct word
Physics & Space Science
Weather occurs in the
a. stratosphere. b. troposphere. c. mesosphere. d. thermosphere.
Physics & Space Science
Which of the following is an example of adiabatic warming?
A) cyclone B) Chinook C) drought D) tornado
Physics & Space Science