From the lessons learned by the Viking landers, what do scientists believe is the best kind of robotic space mission with the best chance of detecting life on Mars?
A) lander
B) rover
C) sample return
D) orbiter
C
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The oldest rocks are found
A) at convergent boundaries. B) at divergent boundaries. C) in the ocean basins. D) on continental land.
When a fixed amount of ideal gas goes through an isochoric process
A) its internal (thermal) energy does not change. B) the gas does no work. C) no heat enters or leaves the gas. D) its temperature must increase. E) its pressure must increase.
The apparent visual magnitude of a star is 7.3 . This tells us that the star is
a. one of the brighter stars in the sky. b. bright enough that it would be visible even during the day. c. not visible with the unaided eye. d. very far from Earth. e. very close to Earth.
A newton is larger than a pound
a. True b. False Indicate whether the statement is true or false