Each night you measure your height just before going to bed. When you arise each morning, you measure your height again and consistently find that you are 1 inch taller than you were the night before but only as tall as you were 24 hours ago! Is what
happens to your body in this instance best described as a physical change or a chemical change? A) chemical change because it involves your body
B) physical change because it readily reverses
C) chemical change because it involves changes in your bone structure
D) physical change because water expands as it freezes
B
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Which of the following are documented negative impacts of dams?
A) flooding, habitat destruction, alteration of river sediment deposition B) alteration of river salinity C) acid deposition D) increased atmospheric carbon dioxide and CFCs E) increased carbon monoxide emissions, decreased rainfall
This cloud sometimes produces "mare's tails"
What will be an ideal response?
In glycerophospholipids where is the phosphate group attached to glycerol?
A) at the middle carbon only B) at a terminal carbon only C) at either the middle or a terminal carbon D) at both the middle and a terminal carbon
The parallels of latitude that lie between about 23o N and S are known as the
a. low latitudes. b. mid latitudes. c. high latitudes. d. meridians.