Rounding is
A. a type of mineral
B. the rounding of a grain to a spherical shape
C. the grinding away of sharp edges and corners of rock fragments during transportation
D. None of these choices are correct.
Answer: C
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Which biological process may have resulted in the development of eukaryotic organisms from primitive prokaryotic
organisms? a. endosymbiosis b. abiogenesis c. stratification d. progradation e. outgassing
Some students on a biology field trip were sitting around watching honeybees. Some of the students noticed that bees spent more time on some flowers than on other flowers. As they talked about this behavior, the students offered various explanations
Some thought that the bees were avoiding predators on some flowers, while other students suggested that some flowers may have sweeter nectar. These speculations about bee behavior are examples of ________. A) data B) bias C) hypotheses D) theories
There is substantial mixing of air between the troposphere and the stratosphere
Indicate whether the statement is true or false
Which of the following gives the correct order of solubility in water?
A) C2H5NH2 < C4H9NH2 < C6H13NH2 B) C2H5NH2 < C6H13NH2 < C4H9NH2 C) C6H13NH2 < C4H9NH2 < C2H5NH2 D) C6H13NH2 < C2H5NH2 < C4H9NH2