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Land that cannot be cultivated will not be productive for other uses.
Q4: The rate of human population growth has
Q7: Which of the following is a method
Q16: Climate change can be natural.
Q26: Local land-use planning is usually more effective
Q26: Measure of the number of organisms per
Q29: A hybrid vehicle<br>A)contains only an internal combustion
Q37: Measure of the biological damage to tissue
Q74: Which of the following is a secondary
Q86: In which of the following are fuel
Q101: Coal is the most abundant fossil fuel.