How do we humans affect the nitrogen cycle?

Human population growth Fossil Fuels burning Automobiles, factories, power plants and other combustion processes that were stored in geological forms are sent back into the atmosphere by human actions which increase the amount of Nitrogenand affect the Nitrogen cycle.

Since a female is both xx chromosome and the male passes down the x chromosome, than the offspring would be female since a female is xx.

4, two dominant and two recessive