CharuKapoor wrote:
Building a space station, in which astronauts would live for a considerable time, is essential even if the space station project were to contribute no new knowledge about space or Earth that could not otherwise be obtained. For future missions to explore Mars, we will need the medical knowledge that the space station project will give us about the limits human capacities to live in spacecraft for an extended time.
The argument makes the assumption that
(A) the exploration of Mars will be carried out by people travelling in spacecraft and not by robots alone.
(B) the capacities of astronauts are typical of those of ordinary human beings
(C) no unforeseen medical problems will arise on the first mission to explore mars
(D) a mission to Mars will be the first of many missions that will explore the solar system
(E) living in spaceship for an extended time presents insurmountable medical problems
OA after some discussion
Premise: "For future missions to explore Mars,
we will need the medical knowledge that the space station project will give us
about the limits human capacities to live in spacecraft for an extended time."
assumption: because humans are needed for space missions to marsConclusion: So, "building a space station, in which astronauts would live for a considerable time, is essential"
If choice A is not assumed i.e, if humans are not needed for future missions, then the argument is not true. Therefore choice A.
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