Explain why an observer can experience two unequal high tides during one day
What will be an ideal response?
The gravitational forces between the Earth and the Moon cause tides. Because the Moon's gravitational pull on Earth is slightly greater on the near side of Earth than on the far side, the tidal bulge is slightly greater on the near side, causing a slightly higher tide.
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So far ____________________ methods are economically feasible only with low-grade ores for which conventional mining methods are too expensive
Fill in the blanks with correct word
Wegener was the first scientist to reassemble the continents according to geology and geometry
a. True b. False
In terms of matter and resources, Earth is essentially a(n) ________ system ; in terms of energy, Earth is a(n) ________ system
A) closed; open B) closed; closed C) open; open D) open; closed E) negative; positive
The locations of the major pressure and wind systems on the earth:
A) are fixed by the poles and equator. B) move as they follow the vertical rays of the Sun. C) do not change with the seasons. D) are denoted by parallels of latitude. E) are fixed by astronomy.