The chemical factors that determine traits are called

Genes

Explanation:

The chemical factors that determine traits are called genes.

Genes is something that you inherit from your family.

These might include, traits, looks, blood type, and much more.

It don’t

Explanation:
We might think that adding specific nitrogen compounds to agriculture would affect the nitrogen cycle. But, it really is just a part of a much larger system as shown by the included graphics.
As a "cycle" the nitrogen is continuously removed from the atmosphere and ground sources, used by plants for growth, and then fixed, immobilized or leached or removed back to the soil or atmosphere.