The extinction of species on Earth is most closely linked with which of the following human activities? A)
global warming
B)
pollution
C)
changes in land use
D)
the domestication of animals

Which term defines a power shared by state and federal governments? concurrent expressed implied reserved

  usually, loads of more than pounds require the assistance of a second person.           a. 40   b. 20   c. 50   d. 30

How much hazardous chemical waste is produced per year in the us? a) 25 million metric tons b) 100 million metric tons c) 250 million metric tons d) 700 million metric tons e) 950 million metric tons