Milestones and Turning Points — Cumulative exam Answers

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Human use of groundwater has _______ over time.a.increasedb.decreasedc.decreased and then increasedd.remained the same

Which of the following stages of urban development contributed to an increase in suburban living?a.preindustrialb.industrialc.pedestriand.automobiles

Which of the following energy sources is expected to have the highest rate of consumption in 2030?a.coalb.natural gasc.nucleard.renewable energy

The greenhouse effect _______.a.is essential for life on Earthb.warms Earth’s atmospherec.is a natural phenomenond.all of the above

The world’s largest remaining tract of mangrove forest is in Australia.

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