Caves are formed by the dissolution of limestone. Rainwater picks up carbon dioxide from the air and as it percolates through the soil, which turns into a weak acid. This slowly dissolves out the limestone along the joints, bedding planes and fractures, some of which become enlarged enough to form caves
The answer to this question is <span>a system for exchanging currencies between countries
By creating the system for exchanging currencies, both parties involved in the trade could detemrine a fair pricing that wouldn't defect each or both parties during the trade so the value that they would receive would be pretty much the same if compared to the local trades</span>
The answer to this question is breaking of the fourth wall.
The fourth wall in a play refers to the figurative dimension that separates the audience and the character's in the play
When the actor addresses the audience as he played the character, he breaks this dimension and brought the audiences to directly become a part of the story.
Answer:
option D, A small group of people share power
So they could work on different things to build a community, like making tools, building shelter, and farming.
