9th Grade Earth Science Regent Questions-Earth's History-packet 6

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1. The bedrock of the Grenville Province is generally thought to have formed approximately: A. 250 million years ago B. 400 million years ago C. 560 million years ago D. 1100 million years ago

D. 1100 million years ago

3. Which location has surface bedrock that consists mostly of gneiss, schist, or marble? A. 43 degrees N 81 degrees W B. 47 degrees N 69 degrees W C. 46 degrees N 78 degrees W D. 49 degrees N 71 degrees W

C. 46 degrees N 78 degrees W

2. Which New York State location has surface bedrock that consists mainly of anorthositic rock? A. Old Forge B. Kassebaum C. My. Marcy D. Utica

C. Mt. Marcy

Base answers to questions 1 through 3 on map attached.

The map shows some regions where metamorphic bedrock of the Grenville Provenice in Northeastern North America is exposed on Earth's Surface.

4. The presence of which index fossil in the surface bedrock most likely indicates that a forest environment once existed in the region? A. Aneurophyton B. Centroceras C. Cystiphyllum D. Bothriolepis

A. Aneurophyton

The diagram above shows an index fossil found in surface bedrock in some parts of New York State. In which New York State landscape region is this Gastropoda fossil most likely found in the surface bedrock? A. Tug Hill Plateau B. Allegheny Plateau C. Adirondack Mountains D. Newark Lowlands

A. Tug Hill Plateau


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