Some 2.5million people currently live in the sahara most of these in egypt mauritania morocco and algeria

true of false?

Distance that the transcontinental railroad covered from omaha to san francisco.

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called

Complete the activity titled "comparative urban environments." every city is shaped by different cultural forces. in one to two paragraphs, contrast the culture of two different cities from this activity: new york and buenos aires. what makes these cities stand apart from each other culturally? what is unique about each city’s attitude, language, habits, foods, or architecture?