According to this data, which impairment should be of most concern?
A) mercury B) algal growth C) pH D) trash E) pathogens
E
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Population in Russia
A) is largely clustered west of the Ural Mountains B) decreases in density as you travel from east to west C) has largely remained rural into the 21st century D) tends to be coastal, with significant concentrations along both the Arctic and Pacific coastlines E) is mainly found along the frontier with China
Tsunami or seismic sea waves are often generated by ____
A) storms at sea B) tidal currents in the open sea C) breaking internal waves D) coastal or submarine earthquakes
An active volcano is defined as one that
A) exhibits activity indicative of an imminent eruption. B) has erupted at least once within recorded history C) has erupted at least once within the past century. D) has erupted at least once within the past decade.
The most effective and practical way of reducing CO2 emissions is to ________.
A. make many small changes over all of the human population that act like 'wedges' reducing emissions B. switch to all renewable energy as soon as possible C. There is no problem with climate change, so we do not need to do anything. D. stop all industry that emits CO2 regardless of the economic problems it may cause