You have the most characteristics in common with members of your own:
a. class
b. species.
c. kingdom.
d. genus.
b
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Humans are the most abundant mammals on Earth
a. True b. False
Drainage basins may cross into multiple countries, compounding the difficulties in proper watershed management
Indicate whether the statement is true or false
Which of the following is incorrect?
A) Increased atmospheric carbon dioxide (CO2 ) causes warming temperatures. B) Scientists can definitively (100% certainty) attribute climate changes to anthropogenic causes alone. C) Global warming affects overall climate. D) Human activities have increased the amount of atmospheric greenhouse gases.
Why are different parts of a continent often different ages?
A. Igneous, sedimentary, and metamorphic rocks were all created at different times, so these different types of rock yield the different ages. B. Different ages only mean that different radiometric isotopes have been used to date the different parts; rocks on one continent are the same age. C. Different ages of terranes may be accreted onto continents, and newer-aged sedimentary rocks or volcanic rocks are deposited on top of older rocks.