The best way to address outdoor air pollution is to ________
A) install scrubbers on smoke stacks
B) build high smoke stacks
C) use less polluting energy sources
D) use high sulfur content coal
E) use automobiles without catalytic converters
C
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The "master gland" produces many hormones that control the function of other endocrine organs. The "master gland" is the
A. hypothalamus. B. thyroid gland. C. anterior pituitary. D. pancreas.
Which statement about solar wind is false?
A) Solar wind is created by fast-moving protons and electrons. B) Solar wind is caused by heat in the Sun. C) Solar wind includes periodic blasts of air. D) Our Sun's solar winds are less intense now than in its early history.
The White Cliffs of Dover are an example of which of the following sediment types?
A) Biogenous Sediment B) Cosmogenous Sediment C) Hydrogenous Sediment D) Lithogenous Sediment E) Terrigenous Sediment
The gently sloping and fast-spreading parts of the mid-ocean ridge are called ________
A) guyots B) nemataths C) oceanic ridges D) oceanic rises E) volcanic arcs