Since all the chemicals that deplete ozone occur naturally in the ozone layer anyway, there is no need to worry about releasing more of them into the air
What will be an ideal response?
Clearly, this is fallacious. Take the case of the Buckeye Egg farm, which was
closed by the state of Ohio because of the concentration of chicken wastes that made the
operation's neighbors sick. Chicken waste is natural, but in nature, such huge numbers of
chickens living together does not occur. Humans change the numbers of such molecules
that do occur in nature anyway, which changes the conditions in ways not always
foreseeable.
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Gravitational waves
A. carry material into black holes. B. do not carry energy. C. are traveling distortions of space and time. D. are how pulsars pulse.
One way to correct chromatic aberration is to
A. Use white light B. Use 2 converging lenses C. Use a converging lens and a diverging lens D. Only allow light to go through the center of the lens
When dark matter was first discovered, some astronomers thought that ?o was greater than one from the extra gravity, favoring what type of universe?
What will be an ideal response?
Solenoid: An ideal solenoid is wound with 470 turns on a wooden form that is 4.0 cm in diameter and 50 cm long. The windings carry a current in the sense shown in the figure. The current produces a magnetic field of magnitude 4.1 mT, at the center of the solenoid. What is the current I in the solenoid windings? (?0 = 4? × 10-7 T ? m/A)
A. 3.5 A B. 3.0 A C. 2.6 A D. 4.3 A E. 3.9 A