Why might the abundance of marine diatoms be related to increased volcanism?
A)Volcanic activity resulted in decreased sunlight, which affected the growth of all marine phytoplankton except diatoms.
B)Volcanic activity may have resulted in the increase in silica in seawater.
C)Increased volcanic activity warmed sea water, creating a favorable habitat for diatoms.
D)Increased volcanism caused cooling of sea water, which created optimal conditions for diatom growth.
E)Increased volcanism created new ecological habitats for diatoms.
B
You might also like to view...
Consider the following processes: respiration, chemosynthesis, combustion of firewood, and photosynthesis. How many of these result in the release of oxygen into the atmosphere?
A) none B) 1 C) 2 D) 3 E) all 4
The collision-coalescence process and the Bergeron process both suggest the same way that precipitation develops from clouds
Indicate whether the statement is true or false
The strongest katabatic winds form
A. mountain breezes in Antarctica and Greenland. B. valley breezes in Antarctica and Greenland. C. when valley breezes warm adiabatically at the saturated and dry rates and release heat. D. when valley breezes warm adiabatically and release heat.
Tides ________
A) produce currents scouring the bottom B) are significant on large lakes C) are unpredictable in occurrence D) are of approximately equal amplitude on all seacoasts E) do not occur in estuaries