Wages have risen in Europe since the 1970s and workers work substantially less than they did 40 years ago. Does this suggest that income effects or substitution effects dominate? a. Income effect
b. Substitution effect

The correct answer is A. Income effect .

Explanation:

In consumer theory, the income effect is the change in consumption that is due to a change in the consumer's real income, that is, his or her purchasing power. Thus, the fact that wages have increased notably, while working time has been reduced during the same period of time, is a clear sign that the working hour of each man within the productive circuit has today in day a purchasing power much higher than what it had in the past.

the correct answer option is b. a single paragraph.

explanation:

when you are thinking about paragraph​ topics, you should always choose a subject that can be adequately addressed in a single paragraph.

a paragraph is a piece of writing consisting of a few sentences that deal with a single theme. it has only a single idea that the paragraph revolves around and talks about.

so a paragraph topic must be chosen wisely where a single idea can be communicated in a single paragraph.

an important city to the south and the region's capital is c. kiev