Question

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The next question refers to This Mystery Rocks! by Cynthia Schlagel.

The sentences have been numbered to help you identify them more easily.

This Mystery Rocks! By Cyntha Schlagel

1The Drifting Rocks are a strange phenomenon still unexplained by science. 2Located in Death Valley, California, the rocks sit on hot, flat ground. 3Unlike normal rocks, they have trails etched behind them as if they have traveled across the sand. 4Some trails are only a few feet. 5Some trails are over a half a mile long. 6Each trail is as baffling as the next.

7The variety of rock movement has baffled scientists for decades. 8Some rocks seem to roll as they move forward. 9Some take unexplainable routes. 10Large ones have traveled past small ones that have stayed still. 11Some scientists suggest that the rocks are pushed by wind. 12Others believe they slide on small amounts of ice or mud. 13So far, research has not confirmed any theory.

Which sentence best identifies the main idea of paragraph two? (4 points)

Group of answer choices

A) Scientists are baffled by the different ways the rocks move.

B)Scientists are confused by the different ways the rocks move, and theories involving wind, ice, and mud have not been confirmed.

C)Scientists have theories of how the rocks move.

D)The rocks have stumped scientists because some roll, some take unexplainable routes, and some have traveled past ones that have stayed still, but scientists have theories that the rocks are pushed by wind or that they slide on ice or mud.

Answer 1

The answer is B: Scientists are confused by the different ways the rocks move, and the theories involving wind, ice, and mud have not been proven.

Step-by-step explanation:

In the second paragraph, it is said that scientists have been baffled by the variety of rock movement. Then, there was a description of their movement and some possible reasons for why it happens. Some of the reasons(wind, ice and mud) were suggested by scientists. The paragraph then ends by saying that none of the theories have been confirmed by research.

This is conveyed very well by option B therefore it the correct option as the main idea of the paragraph.