participating in NASA’s Microgravity University program.
Choices A, C, and D are incorrect because they don’t link the
previously identified problems with the specific solution: a program
that could help the students overcome too little microgravity time and
too small droplets.
QUESTION 40
Choice D is the best answer. The commas after “weightlessness”
and “space” are used correctly to set off the nonessential information
between them. The information between the commas could be removed
and the sentence would still make sense.
Choice A is incorrect because it is missing the comma after
“weightlessness.” In this context, choices B and C are incorrect
because the commas are misplaced. In each of these choices, if the
information between the commas were removed, the sentence would
not make sense.
QUESTION 41
Choice A is the best answer. The addition should be made because
the information specifically identifies an advantage the students
gained by working with NASA’s Microgravity University program: not
traveling to space.
Choice B is incorrect because it isn’t accurate. The previous paragraph
does suggest that the students didn’t actually go into space by stating
that researchers fly their experiments aboard aircraft that simulate the
microgravity environment. Choices C and D are incorrect because the
addition should be made. The addition neither shifts focus away from
the students’ experiences while on the flight nor restates what has
already been said in the sentence.
QUESTION 42
Choice D is the best answer. This choice, “were able to investigate,”
focuses on what the flights enabled the UCSD students to do that they
were not able to do previously using the drop towers. It is consistent
with the previous sentence, which states what the flights allowed the
students to do.
Choices A, B, and C are incorrect because their focus is on
“investigating” and not on allowing or enabling the students to
investigate combustion in an environment that provided larger droplets
and microgravity similar to that experienced in space.
