Lignin is a complex polymer of methoxylated ________ compounds and is present in ________.
A) silica / aquatic environments
B) mineral / rocks
C) oil / fossil fuels
D) aromatic / vascular plant material
Correct Answer:
Verified
Q32: What reaction is catalyzed by mercuric reductase?
A)
Q33: The Fe and Mn cycles include
A) reduced
Q34: Coccolithophores and foraminiferans both use _ to
Q35: Greenhouse gases
A) such as CO₂, CH₄, and
Q36: Which is the most toxic form of
Q38: The two major forms of carbon that
Q39: Lysis of marine algae and cyanobacteria releases
Q40: In the oceans, sulfur exists primarily as
A)
Q41: When carbon is limiting in a system,
Q42: Increasing atmospheric carbon dioxide is
A) increasing sedimentation
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