The configuration at which carbon of a pentose determines if the pentose has the D or L configuration?
A) C-1
B) C-3
C) C-4
D) C-5
C
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The accident at the Chernobyl nuclear power plant caused similar levels of environmental degradation as did the Three Mile Island accident
Indicate whether the statement is true or false
Fetch refers to ________
A) the rotational movements of water particles beneath a passing surface wave B) the beachfront area where rapid erosion is taking place C) ocean currents moving parallel to the beach D) a large expanse of open water over which the wind blows and generates waves
The most abundant gas in the stratosphere is
a. ?oxygen (O2). b. ?nitrogen (N2). c. ?carbon dioxide (CO2). d. ?ozone (O3). e. ?chlorofluorocarbons (CFCs).
The probe tip of a scanning probe microscope
A. floats above the atoms of a sample. B. chemically changes the atoms of a sample. C. etches into the atoms of a sample. D. injects a magnetic field into the atoms of a sample.