Stones. Stones were not only the building blocks being used to create pyramids, they served as important tools as well. The two main stone types used in construction were limestone and granite. Low-grade limestone was used in creating the inner walls, while smoother white limestone was used on the outer walls.
All of them are necessary
Answer:
All of them actually, sorry if this is late;
Explanation:
I took it on Edge my guy
World War II is generally said to have begun on 1 September 1939, with the invasion of Poland by Germany and subsequent declarations of war on Germany by France and the United Kingdom. ... On 22 June 1941, the European Axis powers launched an invasion of the Soviet Union, opening the largest land theatre of war in history.
