Which one of the following roles is not characteristic of an essential element?
A. being a component of biomolecules
B. changing the chemistry of soil
C. being a structural component of energy related chemical compounds
D. activation or inhibition of enzymes
Answer:B
Which one of the following roles is not characteristic of an essential element?
A. being a component of biomolecules B. changing the chemistry of soil C. being a structural component of energy related chemical compounds D. activation or inhibition of enzymes