Active listening, good posture.
The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.
I hope these links help with your project :)
https://www.hunker.com/12383329/what-are-examples-of-inorganic-fertilizers
http://www.gardenguides.com/129239-examples-inorganic-fertilizers.html