What is considered to be the world's most important marine product?
a. Algin
b. Fish
c. Seaweed for consumption
d. Bycatch
ANS: A
Algin is made from the mucous on seaweed. It is used in an unimaginable amount of products ranging
anywhere from cosmetics to ice cream. Information can be found in the section Biological Resources.
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Carbon-12 (C12), carbon-13 (C13), and carbon-14 (C14) are all ____________________ of the
____________________ carbon. Fill in the blank(s) with the appropriate word(s).
The silicon atom of the silica tetrahedron has a (+/-) ____________________ charge of
____________________ (number?) and the oxygen atoms have a (+/-) ____________________ charge of ____________________ (number?). Therefore, the ion group has an overall (+/-) ____________________ charge of ____________________ (number?). Fill in the blank(s) with the appropriate word(s).
The distance measured from trough to trough or crest to crest of a wave is called the ____
A) wavelength B) wave height C) wave period D) orbit
If you had this type of deformation of a region, it would
A. thin the crust and cause uplift. B. thicken the crust and cause subsidence. C. thin the crust and cause subsidence. D. thicken the crust and cause uplift. E. None of these choices are correct.