KSA Reading Grade 4 Practice Questions - Kentucky Summative Assessment Reading - Grade 4 Exam

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Read the excerpt: 'In the Bluegrass region, soil rests on limestone that adds calcium and phosphorus. These nutrients support thick pasture grasses.' Why does the excerpt say the soil supports bluegrass pasture?

It is rested on sand dunes that retain rainwater. It rests on limestone that enriches it with calcium and phosphorus. It is mixed with river gravel from the Mississippi River. It contains high levels of clay and volcanic ash.

Correct Answer:

It rests on limestone that enriches it with calcium and phosphorus.

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