What does the tendency of micas to produce thin cleavage flakes suggest about its crystal structure?
A) The structure is produced by flow in the igneous rock, aligning glass layers within the crystal structure.
B) The structure is characterized by rings that form an interlocking network, forming planar sheets.
C) The crystal structure is characterized by complex polymerized mats that form a sheetlike structure.
D) The atoms are arranged in orderly arrangements that form strongly bonded sheets separated by weak bonds between the sheets.
D
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What is an essential characteristic of the scientific method?
A) Uncertainty of the question becomes an absolute certainty after using the method. B) The hypotheses are always testable by careful observation and/or experiment. C) The questions asked are designed to always prove that the hypothesis is incorrect. D) Scientific observations always support the questions asked.
If Earth's surface was homogeneous (either all land or all water),?
a. ?the semipermanent highs and lows would be stronger. b. ?the semipermanent highs and lows would be weaker. c. ?the semipermanent highs and lows would disappear altogether. d. ?the semipermanent highs and lows wouldn't change in intensity. e. the semipermanent highs and lows would have the same intensity, but would occur in different locations.?
Silt- and clay-sized particles are the first to be deposited as stream velocity decreases.
Answer the following statement true (T) or false (F)
The fossil record clearly shows that __________.
Fill in the blank(s) with the appropriate word(s).