Material that was once considered to be asthenosphere can change to lithosphere by ________
A) heating so that it will flow B) cooling so that it will break
C) thickening to 100 km D) rising to a shallow level
B
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The bleached, grayish E horizon shown in the diagram here is characteristic of
A) Spodosols.
B) Alfisols.
C) Gelisols.
D) Andisols.
Carbon dioxide and water and light combined to create carbohydrates is a vital portion of which cycle?
A) Oxygen B) Hydrologic C) Nitrogen D) Carbon E) Energy
Light from a candle has a certain brightness 1 m away. At 4 m away its brightness is
A. one-quarter as much. B. one-eighth as much. C. practically the same. D. one sixteenth as much.
Imagine you are handed a mineral sample. It breaks with a conchoidal fracture but displays no cleavage. It does not react with hydrochloric acid, is a light pink color, and has a nonmetallic luster
It is harder than a streak plate, and has a specific gravity of 2.65. What mineral is it? A) olivine B) potassium feldspar C) calcite D) quartz