Which events occurred in europe during the cold war?
emergence of soviet satellite nations
battle of britain
evacuation at dunkirk
berlin blockade
hungarian revolt

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.

the answer is c, all the other options are things they are known for.

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