Wolves that leave the boundaries of Yellowstone are a threat to __.
A. Bears
B. Livestock
C. Cities
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Ответ:
Cities
Explanation:
Ответ:
Explanation:
number of moles = number of particle/ 6.02X10^23
= 12.044 X 10^24/6.02×10^23
=20.0066 moles so round it up to 3 S.F
So
=20.0moles