If the Earth were to warm up a bit, what would happen?
A) There would be a runaway greenhouse effect, with the Earth becoming ever hotter until the oceans evaporated (as may have happened on Venus).
B) Carbonate materials would form in the oceans more rapidly, the atmospheric CO2 content would decrease, and the greenhouse effect would weaken.
C) Carbonate materials would form in the oceans more rapidly, the atmospheric CO2 content would decrease, and the greenhouse effect would strengthen.
D) Carbonate materials would form in the oceans more slowly, the atmospheric CO2 content would increase, and the greenhouse effect would strengthen.
E) The ice caps would melt and cool the Earth back to its normal temperature.
B
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A(n) ____________________ is the largest known structure in the universe
Fill in the blank(s) with correct word
Solenoid: How much current must pass through a 400-turn ideal solenoid that is 4.0 cm long to generate a 1.0-T magnetic field at the center? (?0 = 4? × 10-7 T ? m/A)
A. 0.013 A B. 13 A C. 22 A D. 40 A E. 80 A
James Hutton formulated the concept of
a. catastrophism. b. superposition. c. plate tectonics. d. uniformitarianism.
The power dissipated in an AC series circuit increases as the phase angle approaches what value?
a. zero b. 45° c. 90° d. 180°