The term organic refer to foods that
A) are grown using all-natural methods and without the use of synthetic pesticides or herbicides.
B) contain no organic compounds.
C) contain only organic compounds.
D) are grown hydroponically.
Question 2
Nitrogen is converted to nitrates by which of the following reactions?
A) N2 + O2 + energy(lightning) 2 NO
B) 2 NO + O2 2 NO2
C) 3 NO2 + H2O 2 HNO3 + NO
D) All of these reactions are involved in converting nitrogen to nitrates.
Question 3
The most unique property of carbon is its ability to
A) form four bonds.
B) bond to oxygen.
C) bond to nitrogen.
D) bond to carbon.