14. The law of diminishing returns states that as a firm use more of a variable resource, given the quantity of fixed resources, marginal product of the firm will eventually decrease.

sumerians were responsible.

d. she conquered the black sea coast and parts of poland.

the three roles stated in the dialogue develop the siblings' personalities.

lloyd's personality looks like a trademarketer

dana's personality is afraid from lloyd's behavior and the oldest sister is a decided person who tries to solve any conflict