Sunspots are associated with the solar
A) core.
B) corona.
C) photosphere.
D) chromosphere.
Answer: C
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The general chemical equation for photosynthesis is shown below. Through this reaction are the oxygens of the water molecules, H2O, oxidized or reduced? 6 CO2 + 6H2O ? C6H12O6 + 6 O2
A) The oxygens of the water molecules are oxidized. B) The oxygens of the water molecules are reduced. C) The oxygens of some of these water molecules are oxidized while others are reduced. D) The oxygens of the water molecules are neither oxidized nor reduced.
As a tsunami enters a bay or fjord, wave height ____
a. ?increases because the water depth deepens b. ?increases because water is warmer c. ?decreases because the water depth decreases near shore d. ?increases because the wave is forced into a narrower space e. ?decreases only if bay water is shallower, increases if it is deeper
All map projections have this in common.
a. small scale b. Confromality c. Perfect portrayal of the globe d. some distortion e. equivalence
What percent of the Sub-Saharan Africa population is under the age of 15 years?
A) 43% B) 55% C) 70% D) 25% E) 63%