Question

which of the following is a problem with monoculture crops?
one disease has the potential to kill the entire crop.
there are a better variety of species planted as crops.
they can be priced higher when sold in bulk.
they are very low maintenance and can be forgotten.

Explanation:

Monoculture crops involve planting a single species. Since all plants are the same, if a disease targets that species, it can wipe out the entire crop. The other options are either benefits (like bulk pricing, low maintenance in some views, or variety which isn't a problem here as monoculture lacks variety) or incorrect statements.

Answer:

One disease has the potential to kill the entire crop.