The law of energy and mass conservation states that ________
A) energy can be created and matter destroyed
B) energy and matter cannot be created or destroyed
C) energy cannot be destroyed but matter can be created
D) both energy and matter can be created and destroyed
Answer: B
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The necessary conditions for hail formation include strong upward vertical motion and:
A) raindrops larger than 5 mm. B) warm temperatures at high levels in the cloud. C) large numbers of particulates. D) large numbers of supercooled droplets.
What element is behaves as the oxidizing agent in the following equation and what element behaves as the reducing agent? Sn2+ + 2 Ag ? Sn + 2 Ag?
A. The tin ion, Sn2+, is the oxidizing agent, while silver, Ag, is the reducing agent. B. The tin, Sn, is the reducing agent, while silver ion, Ag?, is the oxidizing agent. C. The tin ion, Sn2+, is the reducing agent, while silver, Ag, is the oxidizing agent. D. The tin, Sn, is the oxidizing agent, while silver ion, Ag?, is the reducing agent.
The primary reason that the polar ocean doesn't freeze solid and the equatorial ocean doesn't boil away is because the: a. amount of solar energy striking the two regions is very similar
b. ocean moves heat from the low to the high latitudes. c. atmosphere acts as a blanket to protect the Earth from large temperature variations. d. atmosphere moves heat from the low to the high latitudes.
Urban sprawl is a set of policies and tools that encourage more environmentally sustainable urban development with less dependence on cars.
Answer the following statement true (T) or false (F)