In the pea and Moon experiment, it is most important that
A. the pea be green.
B. the Moon be 100% full.
C. light travels in straight lines.
D. all of the above
Answer: C
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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. physical change because it readily reverses B. chemical change because it involves changes in your bone structure C. physical change because water expands as it freezes D. chemical change because it involves your body
The tendency to form clumps or peds is undesirable in a soil to be used for agriculture.
Answer the following statement true (T) or false (F)
Which of the following states has the lowest earthquake risk?
A. Nevada B. South Carolina C. Massachusetts D. Florida E. Arkansas
Which current flows south along the west coast of the United States?
A. Japanese B. Kuroshio C. Gulf Stream D. North Pacific E. California