Massive stone complexes have been found in different parts of europe. what does this suggest about man at the time?

What did the committees of correspondence do ? a) . all of these b). communicated c). contacted foreign government d). planned for actions the colonies took together

Profits are maximized when marginal revenue and marginal costs are a. set c. equal b. less than market price d. greater than market price

What affected the second industrial revolution have on transportation