What type of functional group is likely present in an organic compound with the molecular formula C5H12O whose IR spectrum shows peaks at 3400 cm-1, 2980 cm-1, 1450 cm-1, 1375 cm-1 and 1100 cm-1

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

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i'm pretty sure its b i might be wrong though!

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a