Inhaling PM 2.5 is most likely to cause ________
A) damage to alveoli in the lungs B) hallucinations
C) brain damage D) depletion of the ozone layer
A
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Do connections between habitat patches actually increase their diversity? Evidence from current field research involving plants is determining that ________
A) yes, corridors connecting habitat patches do increase species diversity B) only if adequate fertilizers and pesticides are applied to the habitats C) no, corridors connecting habitat patches actually decrease diversity D) only if migrating animals and birds carry seeds between patches E) no, corridors connecting habitat patches have yet to make a difference
A(n) _______________ is able to maintain a dynamic equilibrium between inflow and outflow of sediment
Fill in the blank with correct word.
_________ were peasant soldiers of the steppes who originally were runaway serfs and other fleeing from the rule of the tsars
Fill in the blank(s) with correct word
About 88 percent of geologic time is represented by the time span called the ________ era
A) Mesozoic B) Phanerozoic C) Precambrian D) Paleozoic