Sound can travel for much greater distances through water than light waves can before being absorbed because ____
A) ?Sound waves continue to travel until something physically stops it.
B) ?Sound waves pick up speed the longer it travels.
C) ?Sound waves get absorbed and then retransmitted through the ocean every 50 feet allowing it to bounce faster than light waves.
D) ?Sound waves travel through water more efficiently than light waves.
D
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Which of the following is true of water budgets?
A) In the winter, when water use is low, evapotranspiration exceeds precipitation B) In the winter, when water use is low, precipitation exceeds exceeds evapotranspiration C) By springtime and early summer, precipitation exceeds evapotranspiration D) By late summer, precipitation exceeds evapotranspiration E) Evapotranspiration never exceeds precipitation
One of the major factors in the acceleration of the exploitation of Earth's resources was the increase in economic activity per person
Indicate whether the statement is true or false
The current population of the world is approximately
a. 7 billion. b. 5 billion. c. 15 billion. d. 10 billion. e. 7 million.
What is the relationship between seafloor spreading and reversals in Earth's magnetic field
What will be an ideal response?