The very common mineral shown in this photograph is commonly a pink- to cream-colored mineral with wavy, light-colored lines. What mineral is it?
A) Garnet
B) Quartz
C) Biotite
D) Muscovite
E) Feldspar
E) Feldspar
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Why is intracrystalline fracturing so common in brittle deformation of highly porous rocks?
What will be an ideal response?
During the Great Depression, conservation
A) was simply a luxury that could not be afforded. B) efforts were opposed by millions of people who had no time to go to parks. C) provided work and helped restore land. D) was devalued as most national parks and national forests were harvested for timber and coal.
Why is the moment magnitude scale favored over the Richter scale?
What will be an ideal response?
Effects attributed to Chernobyl ________
A) include serious respiratory illnesses but no fatalities B) include increased incidence of thyroid cancers C) have not been extensively documented D) include increased incidence of emphysema E) were contained within 40 km of the plant