Some define a trapezoid as a quadrilateral having only one pair of parallel sides (the exclusive definition), thereby excluding parallelograms. ... Under the inclusive definition, all parallelograms (including rhombuses, rectangles and squares) are trapezoids.
The Yalu River also known by Koreans as the Amrok River or Amnok River. It is a river on the border between North Korea and China.
Answer:
Geography is the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries. Historical geography is the branch of geography that studies the ways in which geographic phenomena have changed over time.
Explanation:
1-Germany wanted to have an empire to match other Europeans
2-the alliance system started a chain reaction of countries joining and Germany also wanted to show off there new army to the world(militarianisn)