The geologic history of an area can only be known if there were humans around to record the events. Indicate whether the statement is true or false
F
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In the 19th century, the geologic time scale was first developed using radiometric age dating
techniques. Indicate whether the statement is true or false.
Stratospheric ozone destruction involves a complex series of reactions. The first significant reaction involves ________
A) UV radiation from sunlight breaking apart O3 molecules B) ultraviolet (UV) radiation from sunlight causing Cl atoms to break free from CFCs C) O3 reacting directly with CFCs D) O3 reacting with industrial sulfuric acid
Freeze thaw weathering is an example of _______________ weathering
Fill in the blank(s) with correct word
________ currents are bottom currents that flows parallel to the slopes of the continental margin.
A. Gulf Stream B. Abyssal C. Contour D. Turbidity E. Newfoundland