Which of the following is an example of extrinsic motivation? a. Angelina enjoys painting, so she signs up for art class on weekends.
b. Knox loves the feeling he gets when he runs, so he gets up early to jog before school.
c. Emma likes mystery novels, so she spends Saturday afternoon reading.
d. Andrew wants a good grade in calculus, so he completes extra practice problems.

B. speculate about one positive way and one negative way that this boundary has affected the geographical units it separates over time.

If the human population continues to grow, what is a likely effect on land use? a. more land will be used for cities. b. more land will be used for forests. c. more land will be used for grasslands. d. more land will be used for wetlands.

In a recent telephone survey, 5,000 randomly selected teenagers were asked to cite their primary social network site. six of 10 teenagers said they use mybook as their primary social network site. a 95% confidence interval to estimate the true proportion of teenagers who use mybook as their primary social network site is found to be (0.2964, 0.9036). which of the following is a correct interpretation of the confidence level? ninety-five percent of all samples of this size would yield a confidence interval of (0.2964, 0.9036). there is a 95% chance that the true proportion of teenagers who use mybook as their primary social network site is in the interval (0.2964, 0.9036). ninety-five percent of the time, the procedure used to generate this interval will capture the true proportion of teenagers who use mybook as their primary social network site. ninety-five percent of all the samples of size 5,000 lie in the confidence interval (0.2964, 0.9036).