Which option describes a possible oil and gas trap?
A) an anticline made entirely of sandstone with an organic earth covering
B) a reverse fault with a sandstone layer and a shale layer underneath
C) an anticline with a sandstone layer and a shale layer on top
D) a syncline with a coal layer at the bottom, a sandstone middle, and a shale layer on top
Answer: C
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Which of the following is true of amino acids dissolved in water?
A) They exist in un-ionized form at high pH. B) They exist in un-ionized form at low pH. C) They exist at un-ionized form only at the isoelectric point. D) They do not exist in unionized form at any pH.
What is an example of nonpoint source pollution?
A) toxic waste from a industrial plant B) municipal sewage plant discharge C) coal burning power plant D) agricultural runoff E) None of the above is an example of nonpoint source pollution.
Evangelical Christians, known for their conservative stand on most issues, are becoming green.
Answer the following statement true (T) or false (F)