Major tsunami from Pacific subduction zones can occur as often as every few hundred years
a. True
b. False
ANSWER: True
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A transgression occurs when the sea advances landward. Indicate whether the statement is true or false
Which of the following best matches the description?Radiation consisting of electrons released from the nuclei of many fissionable atoms.
A. U-235 B. transuranic waste C. radiation D. nuclear breeder reactor E. radioactive half-life F. heavy-water reactor G. beta radiation H. alpha radiation I. light-water reactor J. decommissioning K. gamma radiation L. rem M. nuclear fusion N. thermal pollution O. moderator P. nuclear fission
In what three ways does a stream transport its load? Which part of the load moves most slowly?
What will be an ideal response?
The Sun’s energy output, called brightness, varies by ____ with sunspot activity
a. ?less than 1 percent b. ?about 2 percent c. ?about 5 percent d. ?about 10 percent e. ?more than 15 percent