According to scientific evidences, many organic compounds essential for lifcoulNOT foranpersist in thpresencof
A) methane gas.
B) hydrogen gas.
C) oxygen gas.
D) water vapor.
E) carbon dioxide.
Correct Answer:
Verified
Q10: What was thprobablsourcof gases constituting thearly atmosphere?
A)other
Q11: Scientific evidences suggest that oxygen gas appeareon
Q12: Which of thfollowing diseases has been eradicatefrothUnites
Q13: HIV may affect
A)the human reproductive system.
B)the human
Q14: Which of thfollowing components was NOT part
Q16: Malaria is still common in which of
Q17: Thfirst life-relateancarbon-basemoleculwas synthesizein vitro by a German
Q18: Thearth another planets of thsolar systewerformeabout _
Q19: Malaria is likely to bendemic in
A)Russia.
B)North China.
C)Gabon.
D)Belgium.
E)New
Q20: Microorganisms may possibly adapt to which of
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