In oxidation, oxygen is needed to create a chemical reaction.
I would say "gene", as it is the basic unit of heredity.<span />
The one that is true about cells is Number two. The cell is the basic unit of a structure and function of life. The cells are what makes us living things. All living things are made up of cells.
A because it uses a FAN-BOY
The correct answer is option D, that is, look for soil bacteria, which transforms nitrates into nitrogen gas.
A microbial mediated procedure where nitrate is reduced and eventually generating molecular nitrogen via an array of intermediate gaseous nitrogen gaseous outcomes is known as denitrification.
It is generally the withdrawal or the loss of nitrogen or nitrogen components, mainly the reduction of nitrites or nitrates by the bacteria in the soil, which usually leads to the escape of nitrogen into the atmosphere.