The chemical formula of methylamine is CH3NH2. How many valence electrons are associated with a molecule of methylamine?
A) 7
B) 8
C) 12
D) 14
D
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Vandana Shiva is most well-known for
A) her position as being the first person from the world's periphery to head the U.S. Environmental Protection Agency. B) her symbolic power as Hindu god of the environment, agricultural lands and food production. C) her work protecting environmental diversity & sustainability through such things as organic farming, fair trade and the use and preservation of native seeds. D) identifying the benefits of safe agricultural pesticides and genetically modified plants & animals. E) founding Greenpeace.
The molecule that is made during transcription is
A. messenger RNA. B. ribosomal RNA. C. DNA. D. transfer RNA.
In which of the following cases will the total fertility rate (TFR) be highest?
A) when women marry early, have children, then die in their late 20s B) when women marry in their late 20s, then have several children C) when women marry in their late 30s, and then have children D) when women marry early and have one or two children E) when women marry early and have many children over a long span of years
Use the steps of the scientific method to devise an experiment to discover the shape of the Earth. Your answer might not use all the steps in order: Observe phenomena, hypothesis, predict the outcome of the experiment if the hypothesis is supported or unsupported, conduct the experiment and observe what actually happens, and draw conclusions or make a "rule" from your results. You may use any
kind of equipment without worrying about the expense. What will be an ideal response?