Unintended Consequences of Human Activity Test

Which United States regulations deal directly with the disposal of hazardous materials?

-RCRA -Clean Water Act

The drop in the atmospheric ozone levels in the Southern Hemisphere (the "ozone hole") is most evident during which season?

Antarctic spring (October)

Negative impacts associated with large-scale hydroelectric projects have been demonstrated in [ ]

James Bay, Quebec

What component of a wastewater plant is designed to facilitate the decomposition of organic material by aerobic microorganisms?

activated-sludge tank

What is strong evidence of a scientist's contention that a local area was experiencing acid deposition?

an increase in the concentrations of soluble heavy metals in a local pond

The amount of sediment depositors at the mouth of a river system is likely to be increased by the presence upstream of...

artificial levees and embankments

What substance is released by CFCs and catalyzes a chain reaction that breaks down the ozone in the upper atmosphere?

chlorine

What best describes the mechanism of the greenhouse effect in Earth's atmosphere?

infrared radiation from Earth's surface is absorbed by gases in the atmosphere

In the removal of a pollutant from wastewater, what is true if the cost per unit of pollutant removed?

it increases as the concentration of the pollutant decreased

[ ] is the major pollutant that electrostatic precipitators are designed to remove from power-plant smokestack emissions

particulates

What occurs in a forested region that has recently been clear-cut?

the concentration of nitrates in streams running through the region will increase

Why do introduced species often become pests?

they displace native species