What are at least four cutting-edge concepts in sustainable agriculture?
What will be an ideal response?
Some of the sustainable agriculture practices discussed in the text are locavores (eating locally grown products), urban agriculture, home algae farms, and organic farming.
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Which of the following geologic observations would bear directly on working out the sequence of geologic events in an area?
A) mineral analysis of schist B) grain size comparison between sandstone and shale C) an unconformity between a granite and a sandstone D) the feldspar and quartz contents of a granite
Suppose an electric-generating power plant is about to be built near your house. The local government has not decided whether to allow coal, nuclear, or oil as fuel for the plant (natural gas is not an option). Some groups argue coal is the best choice because there is a 200-year supply and using coal reduces our dependence on foreign oil. Critics argue that burning coal produces three times more global-warming gasses than oil. Coal also produces more dust and expels more acid-rain-causing gases than oil. Others argue that nuclear-generated power produces no greenhouse gases and no other atmospheric pollution. Critics argue that there is presently no long-term location to store the radioactive waste that will be generated and question the safety of nuclear power. Over the life of the
plant, nuclear is the least expensive option, followed by coal and then oil.Which of the earth-system scientist's roles is best illustrated by this paragraph? A. Ensuring the future of human life B. Use of earth resources C. Informing society D. Alerting public of natural hazards
An estimated ________ percent of Earth's evaporation occurs over oceans
A) 86 B) 71 C) 16 D) 97
Is water a renewable resource, nonrenewable resource, or both? Explain
What will be an ideal response?