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Chapter 1
1B-2
Question | Answer |
---|---|
At which season of the year in the Northern Hemisphere is the earth the closest in its approach to the sun? | Winter |
List three reasons that summer is warmer than winter. | greater number of daylight hours, the earth more time each day to absorb the sun’s heat. direct rays of the sun are more concentrated, the amount of energy per square kilometer is greaterthe direct rays of the sun lose less energy to the atmosphere as th |
How much is the earth tilted? | 23 1/2 |
What is the meaning of the word equinox? Solstice? | Solstice: A day in which the number of daylight and dark hours are about equal. Equinox: The sun is directly over the equator. |
An apparent shift in position of background objects due to a change in viewing position is called by what name? | Parallax |
What are two observations that are difficult to explain if the earth is not revolving around the sun? | The parallax of stars, the apparent shift of nearby stars among farther stars as the earth’s position around the sun changes. |