Glaciers that reach the ocean usually: A. break into chunks of ice known as icebergs.
B. travel into the ocean as unbroken massive sheets of ice.
C. melt immediately and disappear from sight.
D. remain solid and create new islands.

According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.