The chief cause of electrical shock is
A. voltage.
B. careless behavior.
C. Ohm's law.
D. excess current.
Answer: A
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Paleomagnetism is the study of the ____________________ magnetism in rocks. When magma cools,
the magnetic iron-bearing minerals align themselves with the Earth's magnetic field and record ____________________ and ____________________. Fill in the blank(s) with the appropriate word(s).
In a controlled experiment, ________
A) you need only a single experimental organism which is tested again and again B) the researcher controls for the effects of all variables except one C) the researcher has several hypotheses, one of which will be proven correct D) the experimental organisms have all been used before and given good results E) the researcher knows the outcome before beginning the experiment
In which location on a continent would one be likely to find young mountain belts (less than 100 million years old)?
A) In the center of the continent B) On the continental shield C) On the stable platform D) Along the margins of the continent
Which of the following electromagnetic wavelengths are LONGEST?
A) Microwaves B) Visible energy C) Ultraviolet energy D) Cosmic rays E) Infrared energy