Why did the Egyptian civilization develop along the Nile River?

Which physical feature minimizes population density in northern africa?

Explain the reasons for u.s. neutrality during the 1920s and 1930s. how did ideas about neutrality change during the period from the end of world war i to the passage of the lend-lease act? be sure to include any events, terms, or people that may support your response.

99 points explain the causes and effects of the japanese bombing of pearl harbor in 1941. make sure to explain 3 causes and 3 effect in detail.