earth science quiz number 7

earth science quiz number 7 - 1.Question1.7 (Points:1)

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1. Question 1.7  (Points: 1)      The star called Sun is roughly __________ years old.  1. Fifteen billion 2. Ten billion 3. Five billion 4. One billion 2. Question 2.7  (Points: 1)      The total amount of energy radiated outward each second by Sun is called Fill in the Blank 01 ( one word  only ).    Save Answer     3. Question 3.7  (Points: 1)      The two outer, transparent layers (i.e. we cann't see them although we know they exist) of Sun are called  1. chromosphere and corona 2. photosphere and corona   Save Answer   4. Question 4.7  (Points: 1)      Currently, Sun generates most of its energy by 'burning' the element Fill in the Blank 01 to produce the  element Fill in the Blank 02 ( answer with only  the chemical symbols of those elements ). 
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earth science quiz number 7 - 1.Question1.7 (Points:1)

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