If the sun were the size of a grapefruit, what would be the size of jupiter? on this scale, how far from the sun would jupiter be? how far would pluto be from the sun on this scale? how far away would the earth be?

Using complete sentences, describe the central economic problem facing all humans. why does this require people to make choices? how can this result in opportunity costs?

Which of the following statements is true? a. there is not enough food produced in the world to feed everyone. b. the biggest cause of hunger and malnutrition is the cost of getting food to people who need it most. c. most countries have enough arable land and resources to feed their own population and export a surplus d. malnourishment is only seen in a few countries with very limited food supplies.

How long does it take neptune to orbit the sun?