The troposphere is the lowest level of the atmosphere, so it is in contact with the Earth's surface. In contrast, the stratosphere is located above the troposphere, so it is not in contact with the Earth's surface. ... The air density and air pressure are much lower in the stratosphere.
Answer:
Part A is they were masters of organization.
Part B is in this case, as many as 20,000 skilled laborers worked to built the pyramids.
Explanation:
Answer : yo you need to mark him Fr ^^
i believe it typically starts with prologue