Each of the major continents at the beginning of the Paleozoic can be divided into two major components, a(n) ____
a. trough and a range
b. craton and a mobile belt
c. immobile belt and a rift margin
d. craton and an ocean basin
e. immobile belt and a mobile belt
b
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The fossilization process of mineral addition to cavities and pores of bones, teeth, and shells is
called _______. Fill in the blank(s) with the appropriate word(s).
Adding chemicals to remove metals from their ores is called smelting.
Answer the following statement true (T) or false (F)
For ecosystems, what specific step can reduce the impact of global temperature increase?
A) Establish efficient irrigation systems. B) Conservation of wetlands and biodiversity C) Implement immunization programs to prevent spread of diseases. D) Develop drought-hardy plants. E) Improve coastal dikes and canals.
Sundogs form when platelike ice crystals
A) tumble while falling. B) orient themselves vertically. C) orient themselves horizontally. D) melt while falling.