Question

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

This Mystery Rocks! By Cyntha Schlagel
The Drifting Rocks are a strange phenomenon still unexplained by science. Located in Death Valley, California, the rocks
sit on hot, flat ground. Unlike normal rocks, they have trails etched behind them as if they have traveled across the sand.
4Some trails are only a few feet. "Some trails are over a half a mile long. Each trail is as baffling as the next.
W
The variety of rock movement has baffled scientists for decades. Some rocks seem to roll as they move forward. Some
take unexplainable routes. 1°Large 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. 135o far, research has not
confirmed any theory.
Which sentence best identifies the main idea of paragraph two? (4 points)
Scientists are baffled by the different ways the rocks move.
Scientists are confused by the different ways the rocks move, and theories involving wind, ice, and mud have not been confirmed.
Scientists have theories of how the rocks move.
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

It's hard to understand which ones are the answers but I think it's this. 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.

Step-by-step explanation: