How did mesopotamian geography contribute to the development of complex civilizations like sumer? check all that apply.
a. nearby oceans provided access to trade with europe.
b. mountains protected the region from invaders.
c. proximity to nearby civilizations encouraged the spread of agriculture.
d. rivers flooded, providing fertile soil and water for irrigation.

: )

The correct answer is B) Mountains protected the region from invaders and D) Rivers flooded, providing fertile soil and water for irrigation.

Mesopotamian geography contributed to the development of complex civilizations like Sumer in that Mountains protected the region from invaders and Rivers flooded, providing fertile soil and water for irrigation.

Sumeria-Mesopotamia was one of the oldest, if not the oldest civilizations on planet Earth. The Sumerians established between two important rivers: the Tigris and Euphrates. They lived in this fertile region for 2000 years. Historians considered that Sumerians lived in that area in 4500 BC. The most important city-states of Sumer were Uruk, Nippur, Eridu, Lagash, Kish, and Ur. So it's true, Mesopotamian geography contributed to the development of complex civilizations like Sumer in that Mountains protected the region from invaders and Rivers flooded, providing fertile soil and water for irrigation.

the following best describes postwar era writers in their works:

many writers,authors,novelists,poets concentrated more on social art and social writing and stayed away from political writings.

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.