Types of Resources and Pollution

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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?

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?

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?

Pollution from urban and industrial areas Signup and view all the answers

Why is it easier and cheaper to identify and control pollution from point sources than from nonpoint sources?

Nonpoint sources are widely dispersed and often difficult to identify Signup and view all the answers

What are the three factors that determine how severe the harmful effects of a pollutant are?

Chemical nature, concentration, persistence Signup and view all the answers

How is the concentration of a pollutant usually expressed?

ppm Signup and view all the answers

What are the two basic approaches to dealing with pollution mentioned in the text?

Preventing it from reaching the environment, cleaning it up if it does Signup and view all the answers

What is meant by 'persistence' of a pollutant?

How long it stays in the air, water, soil, or body Signup and view all the answers

What are the unwanted effects of pollutants mentioned in the text?

Disruption of life-support systems, damage to wildlife and human health, nuisances Signup and view all the answers

Which of the following is considered as a nonpoint source of pollution?

Pesticides sprayed into the air or blown by the wind Signup and view all the answers

What is the significance of identifying and controlling pollution from point sources?

It is more cost-effective to control pollution from point sources Signup and view all the answers

Which of the following is an example of directly available resource for humans?

Fertile soil Signup and view all the answers

What type of harm do pollutants from nonpoint sources typically cause?

Diffuse and widespread harm to the environment Signup and view all the answers

Where does most pollution from human activities occur?

In or near urban and industrial areas Signup and view all the answers

Which factor determines the chemical nature of a pollutant?

How active and harmful it is to living organisms Signup and view all the answers

Types of Resources and Pollution

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Questions and Answers

What are examples of directly available resources for humans?

What is pollution and where does it come from?

Where does most pollution from human activities occur?

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?

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?

What are the two basic approaches to dealing with pollution mentioned in the text?

What is meant by 'persistence' of a pollutant?

What are the unwanted effects of pollutants mentioned in the text?

Which of the following is considered as a nonpoint source of pollution?

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?

What type of harm do pollutants from nonpoint sources typically cause?

Where does most pollution from human activities occur?

Which factor determines the chemical nature of a pollutant?

In what units is the concentration of a pollutant sometimes expressed?

What makes a pollutant nondegradable?

What are the two basic approaches to dealing with pollution?

What type of pollutants take decades or longer to degrade?

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