Which would result in higher food production at a lower cost? Select four options.
cows that are able to fight off diseases
rice that has added provitamin A
corn that is resistant to diseases
wheat that is not killed by weed killer
corn that can grow in cold places
The four options that would result in higher food production at a lower cost are:
1. Cows that are able to fight off diseases
2. Corn that is resistant to diseases
3. Wheat that is not killed by weed killer
4. Corn that can grow in cold places