Which explanation best describes why Earth observers always see the same face of the moon?
A. The Moon's rate of spin matches the rate at which the Moon revolves around Earth.
B. Earth and Moon are partially gravity locked.
C. We tend only to observe the Moon at night, not during the day, when the opposite face is facing toward Earth.
D. The Moon does not rotate as it circles Earth.
Answer: A
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In Glacial topography, a Horn is:
a. A tributary valley whose floor is at a higher level than that of the main valley b. A bowl-shaped depression that forms at the upper end of glacial troughs c. A thin ridge formed by the headward erosion of two cirques (on opposite sides of a ridge) d. A steep-walled pyramidal peak
With the assistance of powerful super computers, modern-day small-scale maps of Earth can now be made that are distortion free
Indicate whether the statement is true or false
Judge the following sentence according to the criteria given below: It is advantageous for fishers to choose a population that feeds as close to the primary producing population as possible BECAUSE energy transfer between trophic levels is
inefficient. A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.
Which of the following would produce a nuclear reaction?
A) bombarding uranium-238 with protons B) bombarding uranium-235 with protons C) bombarding uranium-238 with neutrons D) bombarding uranium atoms with electrons E) bombarding uranium-235 with neutrons