Answer:
The solved problem is in the photo. Hope it helps.
Answer:
market is a place where we sell or buy things ( goods)
it's characteristics are
buying and selling goods
perfect competitions
market doesn't refer only a fix place
It is C) because that truck has more mass
Well I can't see the following physical properties you talked about in the question.
Mass per unit volume ratio is called density.
Crude oil has parts of decomposed dinosaurs and plants from millions of years ago. When the sun gave energy to the plants for their growth, the dinasours ate them which is now is stored in the oil today. So the sun gave energy to plants, dinosaurs ate them, pasted away and decomposed, then we drill and use it as oil.