All common magnets contain at least
A. four poles.
B. two poles.
C. one pole.
D. none of the above
Answer: B
Environmental & Atmospheric Sciences
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The tragedy of the commons refers to
a. overuse of privately held resources b. overuse of shared common resources c. human deaths from polluted shared resources such as air or water d. government over-regulation of fresh water use e. a Shakespeare play
Environmental & Atmospheric Sciences
The core of Earth is probably composed of
A. calcium magnesium sulfate. B. iron and nickel. C. aluminum oxides. D. silicate minerals.
Environmental & Atmospheric Sciences
Our greatest source of knowledge about Earth's interior comes from ________
A) drill holes B) deep mine shafts C) seismic waves D) volcanic eruptions
Environmental & Atmospheric Sciences
Which climate type lies poleward from Mediterranean climates?
a. savanna b. marine west coast c. humid continental, mild summer d. steppe
Environmental & Atmospheric Sciences