Question

1. choose the correct answer.

sumerians used ______ to make crop production more efficient.
○ pyramids
○ irrigation ditches
○ cuneiform
○ ziggurats

1. choose the correct answer.

______ is a means of survival.
○ subsistence
○ primitive
○ codified
○ dynasty

1. choose the correct answer.

______ was essential to the sumerian economy.
○ subsistence agriculture

Explanation:

Question 10

Pyramids were built by Egyptians, cuneiform is a writing system, ziggurats are religious structures. Irrigation ditches help in supplying water to crops, so Sumerians used them for efficient crop production.

Subsistence refers to the action of maintaining or supporting oneself, which is a means of survival. Primitive refers to something basic/early, codified means organized into a code, dynasty is a ruling family. So subsistence fits as a means of survival.

Sumerian economy relied heavily on agriculture, and subsistence agriculture (producing for survival and local use) was essential. Other options (if any) like trade etc. but from the given partial, subsistence agriculture is a core part of their economic activity.

Answer:

B. irrigation ditches

Question 11