Satellites use ____ to calculate the depths of the ocean
a. variations in elevation of surface water
b. multibeam echo sounding
c. radiometrics
d. variations in ocean density
ANS: A
Satellites use radar pulses every second to determine the elevation of surface water. The distance of the
ocean surface is measured. The variations in elevation correspond with the depth in the ocean. This
method is quite accurate. Information can be found in the section Ocean Floor Is Mapped by
Bathymetry
You might also like to view...
The Doppler effect is a characteristic of
A. sound waves. B. water waves. C. light waves. D. all of the above
The surface distance ________ when the elevation difference between two cells ________.
A. increases, increases B. increases, decreases
Which of the following sedimentary environments would produce the more well-sorted sedimentary rocks?
a. glacial b. river c. glacial river d. beach
An air layer is sometimes put between two panes of glass to help insulate a window because air cannot transfer much heat energy by _______________
Fill in the blank(s) with correct word