Shale is metamorphosed into three rock types: (1) a banded gneissic rock; (2) a rock with small mica crystals with a shiny aspect; (3) a very shiny rock with large mica crystals; and (4) a dull slate with cleavage. Which of the following lists these rocks in order of increasing metamorphic grade?
A. 3, 2, 4, 1
B. 1, 2, 3, 4
C. 4, 3, 2, 1
D. 2, 3, 4, 1
E. 4, 2, 3, 1
Answer: E
You might also like to view...
The trickling-filter system and the activated-sludge system both require
A) high levels of oxygen to promote aerobic decomposition. B) high levels of carbon dioxide to adjust the pH of the water for bacterial action. C) the addition of large amounts of chlorine to kill pathogens. D) the addition of large amounts of ammonia as nutrients to support decomposers.
In a tropical rain forest, dropped leaves, fallen trees, and dead animals decompose ____.
A. quickly due to the abundance of decomposers B. slowly due to the nutrient-poor soils C. slowly due to the abundant rainfall D. moderately and nutrients are taken up by the roots of the lianas E. quickly due to the dense ground vegetation
Pegmatites are extremely coarse-grained igneous rocks.
Answer the following statement true (T) or false (F)
Describe the factors influencing the weathering process. Explain what is meant by differential weathering
What will be an ideal response?