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I have a question about a practice test!! Why is the correct answer D? I chose A.

The practice of artificial irrigation affected the soil in various ways, but not always for the good. Since the channels were often shallow, there was frequently a great loss of water through evaporation in a hot climate. This could lead to a marked increase in soil salinity, since the salts held in solution or suspension were deposited as the water evaporated, and too much salinity could eventually damage the soil. But overall the effect of the irrigation system was to create an artificial environment - and to some extent an artificial climate - with a range of conditions that favored both human experiment and agricultural development. Beyond this, settled agriculture led to the development of property rights and hence to a legal framework and mechanisms to enforce laws. This in turn led to a more extensive and hierarchical government organization and hence to the development of large, stable communities.
 
What can be inferred from paragraph 5 about the development of an organized government?
 
A. Stable communities function best with a hierarchical government.
 
B. Human experiment is most often practiced if government enforces laws.
 
C. An organized government is necessary to extend artificial irrigation.
 
D. The need to enforce property laws required government organization.
 
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1 Answer

Hi Saori,
 
The paragraph does not say that stable communities function best with development of an organized government as stated in statement A and therefore, it is incorrect.
 
The paragraph does not include any information about relationship of human experiment with law enforcement by government as stated in statement B and therefore, it is incorrect.
 
Similarly the paragraph does not say anything about necessity of a government  for artificial irrigation as stated in statement C and therefore, it is incorrect as well. 
 
The paragraph informs the need for organized government for legal framework pertaining to property; this is depicted in statement D and therefore, it is the correct answer.
 
Hope it helps.
 
 

Comments

Thanks, Naina!!
The paragraph says that settled agriculture led to the development of property rights and hence to a legal framework and mechanisms to enforce laws. 
 
I chose A because the last sentence says that This in turn led to a more extensive and hierarchical government organization and hence to the development of large, stable communities.
But, I misunderstood this sentence.
 
Thanks a lot!!