UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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composition of a rock layer in northern Florida
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summer sea-surface temperature in the Florida Keys
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number of different fish species in coral reefs near Florida
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Florida height of high tide on one day at a beach in southern Florida
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Detailed explanation-1: -The key instrument of nearly all modern observational astronomy is the telescope. This serves the dual purposes of gathering more light so that very faint objects can be observed, and magnifying the image so that small and distant objects can be observed.
Detailed explanation-2: -Which of these technologies is used to observe these distant places? Refracting telescopes use lenses.
Detailed explanation-3: -Why does the sender require the satellite to relay the signal to the destination? The signal moves in a straight line, and the curve of Earth would prevent the signal from reaching the receiver.
Detailed explanation-4: -How are satellites able to map the ocean floor? Due to gravity, ocean water is attracted to areas of high topography and away from areas of low topography on the sea floor, causing bulges and depressions on the ocean surface. Satellite radar can detect these changes in elevation.
Detailed explanation-5: -The main function of the Kepler Space Telescope is searching for extrasolar planets. One current method of detecting planets orbiting around other stars would be observing the “wobble” of the star caused by the planet’s gravity.