Loess was a problem for the people of the huang river valley because it
a. caused constant dust storms and eroded good farming soil.
b. settled on the river bottom, causing the water to rise and flood.
c. tended to coat young plants, preventing the crops from growing properly.
d. contaminated the freshwater supply for most of the valley.

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explanation:

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explanation:

question:  

the chart compares religious beliefs to us political party support.

religious beliefs and party support, 2012

this chart demonstrates that

a) more highly religious people supported the republican candidate, while more nonreligious people supported the democratic candidate.

b) more highly religious people supported the democratic candidate, while more nonreligious people supported the republican candidate.

c) more moderately religious people supported the republican candidate, while more nonreligious people supported the democratic candidate.

d) more moderately religious people supported the democratic candidate, while more nonreligious people supported the republican candidate.

answer: a.