Which of the following is not a factor of production

After the fall of saigon, americans a) were eager to explore the lessons of vietnam b) just wanted to forget about the war c)bought airline tickets to hanoi d)demanded that the u.s. get involved in "another vietnam"

Identify the structure of the human heart which is a muscular chamber that pumps blood out of the heart and into the circulatory system.

Effective decision-making means comparing the additional costs of alternatives with the . total costs diminishing utility marginal benefits