increase in fossil fuel production decrease in corn production increase in severe weather decrease in nutrients in soil
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Corn can be used to make ethanol, which is a fuel for some cars. What problem could be caused by the increased use of ethanol?
Possibilities:
- increase in fossil fuel production
- decrease in corn production
- increase in severe weather
- decrease in nutrients in soil

decrease in nutrients in soil