Kellogg Community College Necessary Conditions to Grow Food Crops Questions

I need someone to answer these questions.

What conditions are necessary to grow food crops? When those conditions aren’t ideal, what do farmers do to ameliorate those conditions? What are the impacts of those practices?
How is China’s commitment to be grain self-sufficient backfiring in terms of soil fertility, water availability, and the country’s ability to keep production rates at pace with its food needs? What are the predicted impacts on the U.S. grain supply and our own food prices?
Describe how Midwestern farming practices impact the health of the Gulf of Mexico.