Water molecules bind tightly to one another. This is a result of
A) hydrogen bonding.
B) covalent bonding.
C) atomic friction.
D) molecular hold.
A
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Which of the following is true about the formation and migration of meanders?
A) Most floodplains do not preserve evidence of the former position of meanders. B) Flow velocity is highest when water takes a shortcut around the inside of a bend. C) Meanders migrate inward as sediment is deposited on the inside bend. D) Migration of meanders back and forth can help form a floodplain. E) None of these are correct.
What are the economic uses of three common nonsilicate minerals?
Silver was used for photography, fluorite was used as an ore of lead, and anhydrite is used in plaster. Halite is used for common salt, anhydrite is used in plaster, and graphite was used as an abrasive. Fluorite is used in steelmaking, dolomite is used in plaster, and corundum is used as an abrasive. Halite is used for common salt, gypsum is used in plaster, and graphite was used as pencil lead. Galena is used as pencil lead, halite is used as common salt, and calcite is used in Portland cement.
A virtual reality is a new "place" that has been created
A) mentally, through the use of computers. B) within areas of the government. C) within video games. D) among a group of users.
The vertical structure of the hurricane shows an upper-level ____ of air, and a surface ____ of air
A) outflow; inflow B) outflow; outflow C) inflow; outflow D) inflow; inflow