(3) (4)
4. The river valleys of the Tigris-Euphrates, the Nile, and the Indus
were centers of civilization because they
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(1) had rich deposits of iron ore and coal
(2) were isolated from other cultural influences
(3) were easy to defend from invasion
(4) provided a means of transportation and irrigation

Which property of soil depends on the size of particles? color odor temperature texture

What is the primary purpose of a game reserve?

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?