Fertilizers increase crop yields, as well as make the plants in your windowsill look nice. Some of the chemicals in this fertilizer came from petroleum products.
Pesticides are among the many chemicals that my be used to protect crops. Much like fertilizers, oil is an important ingredient in many pesticides. Some people think that our food production would only be half of what it is today if pesticides were not used. Without the use of pesticides, food would cost much more than at present, and many people would have to pay more to eat nutritious meals.
