The _______________ of a building’s sway tells how many times per second it will sway back and forth
Fill in the blank with correct word.
ANSWER: ?frequency
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Why are there so many more impact craters visible on the Moon than on Earth?
A. The Moon has been hit by many more meteorites than Earth, particularly the > 1 km diameter bodies that create the biggest craters. B. Craters on Earth can be destroyed by erosion and mountain-building processes, or obscured by vegetation or sedimentation. C. The Moon formed long before Earth formed, so has had more time to be hit by meteorites. D. The period of heavy meteorite bombardment of Earth occurred only when the planet was very young and entirely molten, so craters were not created. E. The Moon is made out of softer rock than Earth that is more readily deformed when impacted by meteorites. F. Because of gravitational effects, the Moon deflects many of the meteorites that would otherwise hit Earth.
Economic development in Thailand is concentrated around the city of:
A) Bangkok B) Hanoi C) Saigon D) Yangon
The sidereal day is more constant and shorter than the solar day.
Answer the following statement true (T) or false (F)
In what continent would you find a polar desert?
A. Africa B. South America C. Australia D. Antarctica