1. describe one economic system used in europe during the middle ages or age of exploration and one economic system used during the industrial revolution. then, briefly explain the important differences between these systems.

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.

c is the correct answer for this question.