Which of the following compounds contains ionic bonds?
A) CH4
B) K2O
C) Cl2
D) OF2
E) none of the above
B
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What is the most important physical environmental factor in intertidal communities?
a. temperature b. salinity c. density d. pressure e. rise and fall of tides
With increasing distance from an oceanic ridge,
A. the rocks become younger. B. the rocks become older. C. the rocks' ages alternate between younger and older. D. All of the choices; different patterns occur at different ridges.
Briefly describe where each of the following features is found in Earth's general circulation. What meteorological conditions might you find associated with each feature?
horse latitudes trade winds ITCZ polar front doldrums What will be the ideal response?
Very large red stars, such as Betelgeuse in the constellation Orion, are called ________
Fill in the blank(s) with correct word