You have decided to install solar collectors on the roof of your home that will cut your use of propane gas to heat both your hot water tank and the living spaces in your home
In doing so, you are using a ______________resource rather than a ______________resource.
a. renewable; nonrenewable
b. perpetual; renewable
c. renewable; perpetual
d. nonrenewable; renewable
e. perpetual; nonrenewable
E
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How many elements make up the majority of Earth's continental crust?
Discuss the evidence supporting the theory of plate tectonics. Provide specific examples. What will be an ideal response?
A reduction in the volume of paper going to landfills has been brought about by
A) newspapers going out of business in most large cities. B) electronic communications. C) the invention of biodegradable paper. D) the replacement of organic paper with plastic "paper" in many businesses.
The Florida Everglades Case Study points out the problems associated with competing interests. In this case, the needs of a rapidly growing urban population compete with the needs of a massive, complex ecosystem. As the human population continues to grow, competition will grow. Is it important for an ecosystem such as the everglades to be restored given the cost and potential impact on the needs of the human population? Explain.
What will be an ideal response?