The United States and Canada are prime examples of
A) authoritarian dictatorships
B) parliamentary democracies
C) federal states
D) confederations
E) unitary states
B) parliamentary democracies
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Which of the following is true regarding mass relationships in a chemical reaction?
A) To determine mass relationships in a chemical reaction, you first need to know the balanced chemical equation for the reaction. B) To convert from grams to moles and vice versa, you need to use molar mass as a conversion factor. C) Both a and b are true. D) Both a and b are false.
Which of the following provide a mechanism for the transport of ions and polar molecules through a membrane?
A) active transport B) diffusion C) both a and b D) neither a nor b
The general U.S. government response to possible terrorism at nuclear power plants since 2001 has been
A) limited to a few unenforced regulations. B) to convert nuclear facilities to military installations with state of the art security. C) enhanced security at plants and at spent fuel storage pools. D) nothing because of budget cuts brought about by the 2008 recession.
What is the potential for developing more hydroelectric power in North America versus developing countries, and what would be the environmental impacts of such development?
What will be an ideal response?