When a liter of helium gas becomes twice as hot it has
A. twice the absolute temperature.
B. twice the thermal energy.
C. both of these
D. none of the above
Answer: C
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Do you think it is appropriate for developed countries to persuade less-developed countries to limit their population growth? What would be appropriate and inappropriate interventions, according to your ethics? Now imagine you are a citizen of a less-developed country. What might be your reply to those who live in more developed countries? Why?
What will be an ideal response?
Which of the following conditions defines upwelling?
A. the rising air motion in a low-pressure centre B. the increasing height in an upper-level ridge C. the rising of cold water from below D. the lifting of air along the polar front
The rocks of the core are more dense than the rocks of the mantle
Indicate whether the statement is true or false
The ________ is the layer of the atmosphere where electrified atoms are plentiful
A) thermosphere B) ionosphere C) troposphere D) exosphere E) stratosphere