The settling of the soil as water is removed from aquifers causes __________, which causes the surface to lower.
Ans: subsidence
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The summer months (June through August in the Northern Hemisphere) are the period of greatest tornado frequency
Indicate whether the statement is true or false
The equinox
A) occurs four times during the year. B) has 12 hours of day and 12 hours of night for all locations. C) is the longest day of the year at any given place. D) is when the subsolar point is at one of the tropics.
The exact carrying capacity of the earth is 50 billion people.
Answer the following statement true (T) or false (F)
The phosphoric acid salt of caffeine has the structure
This molecule behaves as an acid in that it can donate a hydrogen ion, created from the hydrogen atom bonded to the positively charged nitrogen atom. What salt is formed when 1 mole of this salt reacts with 1 mole of sodium hydroxide, NaOH, a strong base?
A. Na+H2PO4- B. Na2+HPO42- C. Salts can't react to form salts, rather they only arise from the reaction of an acid and a base. D. H3O+H2PO4-