The chemical formula of methanol is CH3OH. How many unshared electron pairs are associated with a molecule of methanol?
A) 1
B) 2
C) 4
D) 6
B
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a. notochord, dorsal hollow nerve cord, and pharyngeal slits b. backbone and pharyngeal slits c. notochord and lungs d. notochord, dorsal hollow nerve chord. and lungs e. dorsal hollow nerve chord, lungs, and a thermoduct
____ is the study of the composition, origin, areal distribution, and age relationships of layered rocks
A)Stratigraphy B)Uniformitarianism C)Lithography D)Chronography E)Biostratification
Which soil horizon can hold more water due to the accumulation of fine clay particles?
A) A horizon B) B horizon C) O horizon D) E horizon
________ form when waves that approach the beach at an angle and produce a net current direction that is parallel to the shore, resulting in beach drift
A) Refractions B) Rip currents C) Eddies D) Longshore currents