The common geographic factor for Egypt and the fertile crescent were the big rivers, they made big alluvial deposits on their shores each year and allowed the people to have sufficient amount of food production. That opened the gates for civilizations to flourish in this places.
Between the bottoms of two convection cells
The correct answer is (c.) Lithosphere. The lithosphere is not a layer of the atmosphere, instead, it is a layer of the grounds of the Earth. It is the rigid outer layer that consists of the upper mantle and crust.
matias may live farther away so its 0.7 kilometers.
jack may live closer to the bookstore so it may only be 0.5 kilometers.