Which of the following supports the claim that results of the labeled release experiment do not imply the existence of life on Mars?
A)A soil sample,moistened a second time,did not release additional gas
B)A heated soil sample did not produce gas
C)The nutrient solution contained carbon 14,which is radioactive
D)None of the soil samples produced any nitrogen gas

Question

Quizplus · Accepted Answer

The fact that a soil sample, when moistened a second time, did not release additional gas indicates that the gas observed in the initial moistening was not produced by living organisms. This suggests that the results of the experiment may have been caused by a non-biological source, rather than proving the existence of life on Mars. The other answer choices do not directly relate to this claim.

Which of the Following Supports the Claim That Results of the Labeled