What is the origin of Martian meteorites?
A) they are rocks brought to Earth by Martians
B) they are rocks brought back to Earth by sample return missions
C) they are rocks blasted from the surface of Mars by volcanoes; these rocks then floated around in interplanetary space before falling to Earth
D) they are rocks blasted from the surface of Mars by impacts; these rocks then floated around in interplanetary space before falling to Earth
D
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The parallax angle of the Sun is 1 arc second
a. True b. False Indicate whether the statement is true or false
Four of the five answers listed below are names of kingdoms. Select the exception
a. Animalia b. Protista c. Eukarya d. Fungi e. Plantae
When atmospheric pressure changes, what happens to the absolute pressure at the bottom of a pool?
A) It does not change. B) It increases by a lesser amount. C) It increases by the same amount. D) It increases by a greater amount. E) It depends on the depth of the pool.
Does an electric field exert a force on a beam of moving electrons? Assume the motion of the electrons is along the x axis and field is in the y direction
1.yes 2.no