The development of the calander shows they can divde the number of minutes hours days month etc in a year. Development of the pyramids shows geometry and engineering. look up to make sure.
The war in Syria start on March 15, 2011.
hope that helps
<span>Erosion by rivers is a main valley-forming
process; other processes, such as movement of the earth's crust and
glaciers, also have an important part in some cases. The rate at which a
river deepens its valley depends on several factors.</span>
Explanation:
the collision of the African Plate with Eurasia
Answer:
because, in reality, the development of a country's economy ... make an important contribution to the analysis of levels of development.
Explanation:
