Which of the following statements is false?
a. Ozone in the lower stratosphere shields the earth from about 95% of the sun's harmful ultraviolet rays.
b. CFCs are odorless and stable.
c. CFCs are nonflammable, nontoxic, and noncorrosive.
d. Fluorine atoms are most responsible for the breakdown of ozone to molecular oxygen.
e. CFCs are cheap to produce.
D
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Which of the following statements about squatter settlements in Latin America is NOT true?
A) Many urban dwellers (especially poor people) live there. B) They provide adequate housing. C) They do not have utilities. D) They are especially vulnerable to natural hazards. E) They are unplanned.
Nitric oxide
A) is a highly toxic compound. B) easily oxidizes to form nitrogen dioxide. C) takes thousands of years to break down once released into the atmosphere. D) primarily affects the pulmonary system.
When the price for the quantity supplied of a good is equal to the quantity demanded for that item, we have a condition of market equilibrium.
Answer the following statement true (T) or false (F)
What kind of subduction occurs when old, dense lithosphere sinks into the mantle by its own weight rather than by compressional force?
A) Forced subduction B) Mantle plume subduction C) Spontaneous subduction D) Overriding subduction