Which of the following is NOT an ion?
A. Mg+2
B. H+1
C. Br-
D. O2
E. NO3-
Answer: D
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United States dependence on foreign countries for mineral resources other than oil could occur in the future because of the emerging demand for
a. lithium for cell phone, laptop and electric car batteries b. lithium for LED lights c. silver nitrate for cell phone, laptop and electric car batteries d. mercury for digital camera batteries e. granite kitchen counter tops
During the _____ Period, southern Gondwana moved over the South Pole, resulting in extensive glaciation
A)Permian B)Carboniferous C)Devonian D)Ordovician E)Cambrian
If ocean water were incompressible, the sea level would be ________ its present level.
A. higher than B. lower than C. equal to
What is basic and nonbasic employment, and why are both of these important to the local economies of communities in North America?
What will be an ideal response?