In terms of matter and resources, Earth is essentially a(n) ________ system ; in terms of energy, Earth is a(n) ________ system
A) closed; open
B) closed; closed
C) open; open
D) open; closed
E) negative; positive
A
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Which of the following is true of electrolytes?
A) All electrolytes have water as a solvent. B) All electrolytes contain equal numbers of cations and anions. C) both a and b D) neither a nor b
The ________ includes most of geologic time (87%).
A. Paleozoic Era B. Mesozoic Era C. Quaternary Period D. Cenozoic Era E. Precambrian
When a meander from the Gulf Stream pinches off and isolates a body of water within the North Atlantic gyre, the body of water is called a ________
A) cold core ring B) cyclonic circulation C) geostrophic circulation D) Langmuir cell E) warm core ring
Which of the following U.S states will have a majority-minority population of over 50% minorities by 2040?
A) New York B) Florida C) California D) Illinois E) all of the above