1. A dry environment soil-forming process that results in the accumulation of calcium carbonate in surface soil layers?

2. Mineral formed from calcium carbonate. Common mineral found in limestone?

3. Compound consisting of calcium and carbonate. Calcium carbonate has the following chemical structure _______?

4. A large circular depression in a volcano?

5. Great diversification of multicellular life forms in the Earth s oceans that started during the Cambrian about 570 million years ago?

6. Explosive type of volcano that leaves a large circular depression. Some of these depressions can be as large as 40 kilometers in diameter. These volcanoes form when wet granitic magma quickly rises to the surface of the Earth?

7. The loss of glacier mass when ice breaks off into a large water body like an ocean or a lake?

8. Quantity of energy. Equals the amount of heat required to raise 1 gram of pure water from 14.5 to 15.5. Celsius at standard atmospheric pressure?

9. Geologic period that occurred from 570 to 505 million years ago?

10. An accumulation of calcium carbonate at or near the soil surface?