The Sun is spherical due to
A) Earth circling it.
B) Earth and Moon circling it.
C) gravitation.
D) none of the above
Answer: C
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A current carrying loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense
(a) For points OUTSIDE the loop, the magnetic field caused by this current A) circles the loop in a clockwise direction. B) circles the loop in a counterclockwise direction. C) points straight up. D) points straight down. E) is zero. (b) For points INSIDE the loop, the magnetic field caused by this current A) circles the loop in a clockwise direction. B) circles the loop in a counterclockwise direction. C) points straight up. D) points straight down. E) is zero.
Almost all active galactic nuclei seem to be involved in ________ with neighbors
Fill in the blank(s) with correct word
G. Easterbrook(25) has said: "The population growth for the next 2 generations is 100 percent cast in stone. Nothing short of world pestilence or a nuclear war can halt population growth for the next 2 generations.
And with the growth in the world's population that is inevitable through the next 2 generations at least, global resource consumption is going to have to rise. That's the only possible moral outcome, so that millions of people don't die in misery. We're going to have to manage a short-term drastic increase in global resource consumption. And the only way we're going to be able to get through the night with that, is with strong environmental regulations and optimism about the success of reform in technology." Agree or disagree with Easterbrook, citing specific reasons.
The ________ a period ________, that coincides with ________.
A. magnetic cycle is; of 22 years; a period of intense solar and earthquakes B. sunspot cycle is; of 11 years; the Sun's rotation around its axis C. Maunder Minimum is; of low sunspot activity; the "little ice age" in the late 17th century D. solar cycle is; of high sunspot activity; the cycle of the planetary alignments