Isizulu HL grade 11 2021​

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 is evidence to the past existence of glaciers?

Anight-club bouncer, now a top official,put coke or pepsi in it; first three initial. combine all lakes; but i still have more,of all the places; i have the largest shore.what am i? ?