Which of the following is an example of a modification ? A. a Living near an oasis in the Sahara Desert
B. Building the Suez Canal
C. Using air conditioning in Cairo, Egypt
D. increasing government control over the environment

Which statement best describes a significant cause of world war ii? o a. the economic boom that followed world war i allowed countries to build up huge militaries. o b. the treaty of versailles, which ended world war i, left lasting resentments in many countries. o c. the rise of imperial states in asia caused european powers to unite for their common defense. o d. the league of nations encouraged european states to form secret military alliances.