Which of the following planets has an exosphere?
A) Mercury
B) Venus
C) Earth
D) Mars
E) all of the above
E
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In what ways is Earth different from the other terrestrial planets?
A) Its lithosphere is broken into plates that move around. B) It has a much higher percentage of oxygen in its atmosphere. C) Most of its surface is covered with liquid water. D) Life can be found almost everywhere on its surface. E) All of the above are true.
The ancient view of an Earth-centered geocentric universe suggested that life elsewhere should be
A) common B) rare C) this view gives us no clue of the likelihood of life elsewhere D) at the center of another, parallel universe
The capacitance of a parallel plate capacitor is directly proportional to its plate separation
Indicate whether the statement is true or false
A particle with a half integer spin is a
a. boson b. lepton c. fermion d. hadron e. muon