Environmental Science Pollution and Waste 3

Question 1

What does PM2.5 refer to in air quality monitoring?

Accepted Answer

Particulate matter 2.5 micrometers or smaller

Answer

Particulate matter 2.5 meters in diameter

Answer

Pollution at 2.5 kilometers altitude

Answer

Phase 2.5 pollutant standard

Question 2

Which process converts organic waste into nutrient-rich soil amendment through microbial decomposition?

Accepted Answer

Composting

Answer

Incineration

Answer

Pyrolysis

Answer

Landfilling

Question 3

What is the main environmental advantage of municipal solid waste incineration over landfilling?

Accepted Answer

Significant volume reduction and energy recovery

Answer

No air emissions

Answer

Lower operating costs

Answer

Elimination of all toxins

Question 4

The Clean Water Act requires municipalities to obtain which type of permit for wastewater discharges?

Accepted Answer

NPDES permit

Answer

RCRA permit

Answer

CERCLA authorization

Answer

CAA operating permit

Question 5

Which heavy metal is most commonly associated with contamination from old lead paint and pipes in U.S. homes?

Accepted Answer

Lead

Answer

Mercury

Answer

Arsenic

Answer

Cadmium

Question 6

Which type of solid waste site is designed with liners and leachate collection systems to prevent groundwater contamination?

Accepted Answer

Sanitary landfill

Answer

Open dump

Answer

Brownfield

Answer

Superfund site