Which is one way that sinkholes can form? a. groundwater dissolves the limestone and other rocks in the ground. b. rivers overflow during a storm and wash away nearby land. c. rainwater flows away from a depression in the ground. d. tornadoes touch down and destroy trees and brush.

James is sitting at his desk on the ground floor of an office building when the entire room starts shaking. which action is most appropriate in this situation? a. standing near a window b. running out of the building c. holding up a bookshelf d. preparing for aftershocks

When participating in a weight training program, which of the following is most likely to occur? a. your overall weight will not changeb. you will gain musclec. you will lose fatd. all of the above

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.