The compound that exerts a major control on the pH of seawater is ________.
A. CO2
B. N2
C. PO43-
D. NH4+
E. NO3-
Answer: A
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Determine if the phrase in bold applies to only contact metamorphism, only regional metamorphism, both types of metamorphism or neither type of metamorphism. Form on Earth's surface
A. Both contact and regional metamorphism B. Only contact metamorphism C. Only regional metamorphism D. Neither contact or regional metamorphism
All things with a temperature above absolute zero emit energy no matter how big or small
Indicate whether the statement is true or false
If you carefully compared the two maps in Figure 11.9.7 you would conclude that states that newly adopted right-to-work laws after 1950 experienced
A) no change in manufacturing employment. B) a decrease in manufacturing employment. C) an increase in manufacturing employment. D) support from the federal government. E) more service-related employment.
What best explains why stream valleys become wider over time?
A. tectonic uplift causes valleys to widen naturally. B. streams get further above base level. C. meandering streams undercut their banks and cause mass wasting. D. stream velocity becomes greater over time. E. deposition of sediment creates a valley floor.