The highest part of a wave is known as its ____________________, and the lowest part is its
____________________. The wave ____________________ is the difference between these two
points. Fill in the blank(s) with the appropriate word(s).
crest, trough, height
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Most seabirds live in the northern hemisphere
Indicate whether the statement is true or false
What is one possible reason artiodactyls have been more successful than perissodactyls?
a. Artiodactyls developed the ability to fly. b. Artiodactyls developed multiple stomachs to aid in digestion. c. Artiodactyls developed long limbs to run faster. d. Perissodactyls developed the ability to fly. e. Perissodactyls developed multiple stomachs to aid in digestion.
Which hazard should be of particular concern to fire fighters who are carrying long tools?
a. self-closing doors b. tight turns in corridor c. overhead wires d. windows
Which of the following statements about desalination is true?
a. The common methods of desalination are reverse osmosis and transpiration. b. Desalination is expensive. c. The removed salt can be dumped back into the ocean with no real concerns. d. Desalination is the best approach to solving irrigation problems. e. Desalination is the best method of acquiring clear water for drinking.