Kudzu is an invasive plant that was intentionally introduced into the U.S. from Japan in 1876. It was initially planted to help curb erosion and to serve as a food source for animals. However, kudzu, which some call the "mile a minute vine," grew out of control. It grew over trees, cars, buildings, and power lines! Kudzu grows approximately 150,000 acres per year! Scientists are trying to slow down the invasion of kudzu by a variety of methods, as follows: Method A: burning and cutting kudzu; reduces growth by 20 percent Method B: infecting the kudzu with a fungus; reduces growth by 40 percent Method C: use of an herbicide; reduces growth by 60 percent What would be the difference between the growth of kudzu by method B and method C in one year?

Question

Quizplus · Accepted Answer

The difference in growth reduction between method B (40%) and method C (60%) is 20%. Since kudzu grows approximately 150,000 acres per year, 20% of 150,000 is 30,000 acres.

Kudzu Is an Invasive Plant That Was Intentionally Introduced into the U.S