6) the united states was able to remain neutral during world war i, until: a. germany invaded france b. chemical weapons were used on the battlefield c. the interception and publication of germany’s zimmerman telegram to mexico d. the death toll became too high

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.

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