When a rock is broken down, this is an example of what type of,

mechanical weathering

chemical weathering

weathering

all the above

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?

Given that the volume of a cuboid is 180 cm³ and the area of one of its rectangular face 36 cm² what is the height of the cuboid

Ineed quickly! which of the following would not be considered an example of the transition of europe into the formation of larger nation-states? a. the hundred years' war b. the unification of italy c. the marriage of isabella and fernando d. the height of feudalism