Human Events And The Environment Quiz 100%

Which choice is an example of an effect of agricultural techniques on the environment? increased oxygen levels in a pond due to fertilizer runoff sediment accumulation in a lake near a farm soil compaction caused by tillage increased plant growth caused by application of herbicides

Which of the following was an environmental consequence of the nuclear meltdown at Chernobyl? a. evacuation of Pripyat b. high levels of radiation c. increased CO2 levels d. none of the above

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

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

Environmental catastrophes can cause changes to the Earth's surface.

Which of the following large-scale environmental catastrophes has the least effect on aquatic ecosystems? a. oil spills b. deforestation c. global warming d. pollution

Sedimentation increases with an increase in land used for agriculture.

Which of the following factors can lead to desertification in the presence of natural drought? a. deforestation b. sustainable grazing c. underground mining d. all of the above

Which of the following is a consequence of sedimentation to wetlands? a. increased biodiversity b. water quality improvement c. habitat loss d. decreased turbidity

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