The ________ includes most of geologic time (87%).
A. Paleozoic Era
B. Mesozoic Era
C. Quaternary Period
D. Cenozoic Era
E. Precambrian
Answer: E
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What is the best way to deal with pollution?
A. Pollution cleanup only B. Pollution prevention only C. A combination of pollution cleanup and prevention D. The most popular way at the current time E. The cheapest way
For the following reaction, identify whether the compound in bold is behaving as an acid or a base. H3PO4 + H2O ? H2PO4- + H3O+
A. acid B. base C. neither D. both E. none of the above
Most organic compounds are made up of ________
A) carbon, hydrogen, and nitrogen atoms B) carbon, nitrogen, and water atoms C) carbon, nitrogen, and ozone atoms D) carbon, hydrogen, and oxygen atoms E) nitrogen, oxygen, and carbon dioxide atoms
Weigh the pros and cons of fracking over nuclear energy
What will be an ideal response?