What prompted calls for environmental reform in the 20th century? How did post-WWII environmentalism differ from earlier movements in its concerns, participants, and/or
methods?

Ithink it’s letter a if i’m not wrong .

The answer is crop yield.

Towns and small farms are usually for land, lakes, rivers, and seas.they also produce other food, like crops.it's also where animals are, where we get our meat.large plantations normally have forests, where crops are grown for sale. (similar to farms)plantations have larger fields of crops.our wine, sugar canes, and fruits come from plantations.