O of 8 Concepts completed Multiple Select Question
Select all that apply
Which of these statements are true regarding the concept of opportunity cost?
Opportunity cost applies to almost all activities.
Opportunity cost can be meared in non-monetary units, such as time.
Opportunity cost means more than the price tag of a good or service.
Opportunity cost has only a monetary value,
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these civilizations were located around fertile rivers, where they could produce an abundance of crops

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.

this act gave the federal government the power to relocate any native in the east to territory west of the mississippi river.

that is probably something for you to answer