Suppose that Earth's rotation axis were tilted by 45 degrees instead of 23.5 degrees. Which of the following would be true, and why?
A) The seasons would be more extreme, because the Sun's rays would be more direct in summer and less direct in winter.
B) The seasons would be more extreme, because the Earth's surface would be closer to the Sun in the summer and farther from the Sun in the winter.
C) The seasons would be less extreme, because the Sun's rays would be less direct in summer and more direct in winter.
D) The seasons would be less extreme, because the Earths' surface would be farther from the Sun in the summer and closer to the Sun in the winter.
A) The seasons would be more extreme, because the Sun's rays would be more direct in summer and less direct in winter.
B) The seasons would be more extreme, because the Earth's surface would be closer to the Sun
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While we can't completely rule out a connection between the sunspot cycle and weather cycles on Earth, most scientists doubt there is a significant effect because
A) the Sun's luminosity changes less than about 0.1% between minimum and maximums of the sunspot cycle. B) the Sun is too far away to affect Earth's weather. C) there are no known cycles in weather or climate that last as long as the sunspot cycle. D) sunspots are linked to the Sun's magnetic field, which could not possibly have any effect on Earth.
According to Aristotle, a rolled ball eventually comes to a stop because
A) of friction. B) of inertia. C) it seeks its natural state of rest. D) all of the above
Assume everyone in the United States consumes one soft drink in an aluminum can every two days. If there are 300 million Americans, how many tons of aluminum need to be recycled each year if each can weighs 1/16 pound, and one ton = 2000 pounds?
a. 750,000 tons c. 1.7 million tons b. 1.5 million tons d. 3 million tons