Which of these statements is NOT true of chemical sedimentary rocks?
A. They are formed from material that is carried in solution.
B. They may be formed through organic or inorganic processes.
C. Examples include salt, chert, and limestone.
D. They generally consist of quartz and feldspar.
E. They are generally formed in water-rich environments.
查看答案
Based on your knowledge of how rapidly different minerals weather, which of these rock types would provide the most suitable foundation base for a home built in the tropics?
A. basalt
B. mafic volcanic breccia
C. limestone
D. granite
E. andesite
When granite is chemically weathered, quartz __________.
A. becomes mica
B. is converted into kaolinite
C. remains virtually unchanged
D. is changed into oxides
E. none of the above
The source of energy that drives Earth's external processes is __________.
A. tidal forces
B. wind
C. gravity
D. the Sun
The relation between volcanic eruptions and climate cannot be established.