Human Events and the Environment Answers

Which of the following statements about pesticides and herbicides is not true?a.They can enter waterways, polluting them.b.Once the pesticides and herbicides break down, they are no longer harmful.c.Pesticides and herbicides are widely used in agriculture.d.Pesticides and herbicides can have negative effects on the environment.

How can fertilizer use be detrimental to the environment?a.It can enter waterways, causing them to accumulate an excess of nutrients.b.High levels of fertilizer in bodies of water can lead to excess algal growth.c.Fertilizer can lead to oxygen depletion, and be harmful to organisms in waterways.d.All of the above

What is the purpose of the Climate Friendly Farming Project?a.close down farms that do not follow climate friendly practicesb.decrease the number of agricultural facilities by 1/3 in ten yearsc.create a database of climate friendly agricultural practicesd.convert all farms to climate friendly practices

Which of the following is a consequence of sedimentation to wetlands?a.increased biodiversityb.water quality improvementc.habitat lossd.decreased turbidity

Dead zones in waterways can occur as the result of fertilizer runoff.

What sometimes occurs when reclaimed water is used in agriculture?a.crop deathb.overtillagec.pharmaceutical accumulationd.increased land use

Which of the following was an environmental consequence of the nuclear meltdown at Chernobyl?a.evacuation of Pripyatb.high levels of radiationc.increased CO2 levelsd.none of the above

How can global warming lead to changes to the Earth’s surface?a.Global warming can lead to an increased number of earthquakes, which change the Earth’s surface.b.Global warming can lead to glaciers melting, causing flooding to areas and the decrease of glacial land masses.c.Global warming leads to a decrease in water levels of coastal wetlands.d.Global warming cannot lead to changes to the Earth’s surface.

Large-scale fires can lead to a decrease in atmospheric carbon dioxide.

Degradates, unlike their parent compounds, are always completely harmless.