A compression is a squeeze and a rarefaction is a
A. stretch.
B. crunch.
C. pinch.
D. reverse tension.
Answer: A
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The Millennium Development Goals are being assessed on the basis of
A) the separate continents of the world, with each continent coordinating the efforts of its countries. B) international efforts to increase the economic development of the most impoverished countries. C) matters of health, reducing the spread of disease, and promoting diet and nutrition. D) ending extreme poverty and hunger all over the world.
The Gulf Stream is the name given to:
A) the circulation of water in the Gulf of Mexico. B) a counter-clockwise surface current in the Gulf of California. C) the current carrying cold water from the North Pole along the West Coast of the United States. D) a warm current carrying water from the equator along the East Coast of the United States.
A flash flood is a variety of upstream flood.
Answer the following statement true (T) or false (F)
Which of the following might best help grasses in a lawn that have been growing in a soil that has a high percentage of clay?
A) Adding fertilizer in the spring and fall B) Adding lime in the spring to neutralize the pH of the soil C) Aerating the lawn by removing small plugs of soil D) Watering the lawn about an inch of water every other day