Organic farming ________________
A)has become more challenging because of contamination by GM crop varieties
B)has no national standards in the United States
C)began in the 1960s
D)and organically grown produce have not been supported by the European Union
E)is presently limited to crops of fruits and vegetables

Question

Quizplus · Accepted Answer

Organic farming has become more challenging due to the risk of contamination from genetically modified (GM) crop varieties, which can affect the purity and certification of organic produce.

Organic Farming ________________