Water _________ threatens aquatic life and has caused entire ecosystems to collapse.
Fill in the blank(s) with the appropriate word(s).
pollution
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The ____________________ ____________________ provides evidence for physical and biological events of Earth’s
history. Fill in the blank(s) with the appropriate word(s).
____________________ illustrate the relationships among members in a group of organisms, including the group’s
most recent common ancestor. Fill in the blank(s) with the appropriate word(s).
Geothermal heat pump systems can heat and cool homes ____.
A. almost anywhere in the world B. in cold climates only C. in warm climates only D. near hydrothermal reservoirs only E. near plate boundaries only
Around the world, whiteness is the norm against which all other visible differences are compared
Indicate whether this statement is true or false.