Podcast
Questions and Answers
What are examples of directly available resources for humans?
What are examples of directly available resources for humans?
- Solar energy and fresh air (correct)
- Iron and groundwater
- Runoff of fertilizers and pesticides
- Petroleum and modern crops
What is pollution and where does it come from?
What is pollution and where does it come from?
- Any addition to air and water that benefits the health of humans
- Addition to soil that promotes the activities of living organisms
- Any addition to air, water, soil, or food that threatens the health of humans or other living organisms (correct)
- Natural elements that support the survival of humans and other living organisms
Where does most pollution from human activities occur?
Where does most pollution from human activities occur?
- In or near urban and industrial areas (correct)
- In natural reserves and national parks
- In rural and agricultural areas
- In remote and uninhabited regions
What are examples of point sources of pollution?
What are examples of point sources of pollution?
Why is it easier and cheaper to identify and control pollution from point sources than from nonpoint sources?
Why is it easier and cheaper to identify and control pollution from point sources than from nonpoint sources?
What are the three factors that determine how severe the harmful effects of a pollutant are?
What are the three factors that determine how severe the harmful effects of a pollutant are?
How is the concentration of a pollutant usually expressed?
How is the concentration of a pollutant usually expressed?
What are the two basic approaches to dealing with pollution mentioned in the text?
What are the two basic approaches to dealing with pollution mentioned in the text?
What is meant by 'persistence' of a pollutant?
What is meant by 'persistence' of a pollutant?
What are the unwanted effects of pollutants mentioned in the text?
What are the unwanted effects of pollutants mentioned in the text?
Which of the following is considered as a nonpoint source of pollution?
Which of the following is considered as a nonpoint source of pollution?
What is the significance of identifying and controlling pollution from point sources?
What is the significance of identifying and controlling pollution from point sources?
Which of the following is an example of directly available resource for humans?
Which of the following is an example of directly available resource for humans?
What type of harm do pollutants from nonpoint sources typically cause?
What type of harm do pollutants from nonpoint sources typically cause?
Where does most pollution from human activities occur?
Where does most pollution from human activities occur?
Which factor determines the chemical nature of a pollutant?
Which factor determines the chemical nature of a pollutant?
In what units is the concentration of a pollutant sometimes expressed?
In what units is the concentration of a pollutant sometimes expressed?
What makes a pollutant nondegradable?
What makes a pollutant nondegradable?
What are the two basic approaches to dealing with pollution?
What are the two basic approaches to dealing with pollution?
What type of pollutants take decades or longer to degrade?
What type of pollutants take decades or longer to degrade?
