____________ are photosynthetic plankton with a rigid cell wall composed of silica called a(n) ____________. Fill in the blank(s) with the appropriate word(s)
Diatoms; frustule
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Based on both percentage of world population and annual stream flows, what can be deduced from this table
What is produced when benzene reacts with chlorine in the presence of an iron catalyst?
A) only chlorobenzene B) chlorobenzene and chlorine atoms C) chlorobenzene and hydrogen chloride D) chlorobenzene and water
Volcanic activity that takes place away from plate boundaries is the result of volcanism at a(n)
____________________. In the U.S., an example of this type of volcanism in the ocean is ____________________; an example on land is __________________ Fill in the blank(s) with the appropriate word(s).
The terminal velocity of an object depends primarily upon:
A) its composition. B) its shape. C) its size. D) the temperature.