Bacteria living in the soil are dependent upon which of the following abiotic factors?
a.
plant root structures and oxygen content
b.
soil temperature and water content
c.
nitrogen content and insect activity
d.
insect activity and plant root structures

Soil temperature and water content.

Explanation:

Bacterial cell that is found in the soil is which needs several factor to grow in it. The bacterial cell grows in a temperature which is favorable for its growth.

Water content of the soil is also an very important factor which is required for the growth of the bacterial cell inside the soil.

The water content and soil temperature determines the growth of the bacterial cell. This determines the overall texture and quality of the soil.

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form() .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

answer///carbon;