Between 1850 and 1950 the productivity of the average American farm worker

Environmental damage

a. cannot be reduced to zero. b. is inevitable where humans exist. c. tends to increase as long as benefits outweigh the costs to the damagers. d. All of the above are correct.

A firm produces and sells two goods, A and B. Good A is known to have many close substitutes; good B makes up a significant portion of most families' budgets. A price increase for each good would most likely cause total revenues from good A to:

A. Increase and total revenues from good B to decrease B. Increase and total revenues from good B to increase C. Decrease and total revenues from good B to increase D. Decrease and total revenues from good B to decrease