» Identify the lenght of the daytime by subtracting the time of sunset to the time of sunrise .
April27,2011
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The presence of oxygen in the early atmosphere is due to a. lightning b. earthquake c. volcanic eruption d. splitting of water by ultraviolet radiation The following are the sources of oxygen in the atmosphere except a. ammonia b. ozone c. water d. sulfate
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DAY-LENGTH FORMAT
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» Identify the lenght of the daytime by subtracting the time of sunset
to the time of sunrise
.
April 27, 2011
April 28, 2011
April 29, 2011
April 30, 2011
==============================
#CarryOnLearning
(ノ^_^)ノ