The proportion f ~ T tells us that the frequency of sunlight is proportional to the
A. temperature of the light itself.
B. temperature of the Sun.
C. both of these
D. none of the above
Answer: B
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Oxygen atoms are used to make water molecules. Does this mean that oxygen, O2, and water, H2O, have similar properties?
A) Yes, and this explains how fish are able to breathe water. B) Yes, but that their properties are similar is only a coincidence. C) No, but their similar properties are only a coincidence. D) No, compounds are uniquely different from the elements from which they're made.
Trapped gases in cooling lava form cavities called ____________________. Cinder cones may contain
large amounts of ____________________, which contains more of these cavities than it does rock Fill in the blank(s) with the appropriate word(s).
The crust is about as thick as the mantle
a. True b. False Indicate whether the statement is true or false
Describe the theory of plate tectonics
What will be an ideal response?