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Ch 33: Praxis Biology & General Science: Pollution and Agriculture

About This Chapter

Let this chapter teach you about pollution and agriculture. The video lessons and self-assessment quizzes in this chapter can help you answer questions about ecology on the Praxis II: Biology and General Science test.

Pollution and Agriculture - Chapter Summary

Learn about physical, chemical and biological pollution through our chapter on pollution and agriculture. Designed by a team of professional educators, this set of short but comprehensive videos also examines sources and types of air and water pollution. They also take a look at deforestation, desertification and declining biological diversity. Additional topics covered in this chapter, which can help you prepare for the Praxis II: Biology and General Science test, include the following:

  • Industrialized and subsistence agriculture
  • Problems in agriculture: Loss of land and decreased varieties
  • Environmental impacts of industrialized agriculture
  • The difference between narrow- and broad-spectrum pesticides
  • Alternative pest control methods for agricultural use
  • Benefits and problems associated with pesticides, sustainable agriculture and genetic engineering

Pollution and Agriculture Objectives

The majority of U.S. states use Praxis II tests in their certification process for public secondary school teachers. You'll have two hours to complete the biology and general science test, which includes 120 multiple-choice questions. Around 13% of these focus on ecology; this section is likely to feature questions on pollution and agriculture.

To prepare for the Praxis II, watch our video presentations and complete the accompanying self-assessment quizzes. The videos typically last less than 10 minutes, and the multiple-choice quizzes are brief as well. If you absorb more information by reading, you can utilize the transcripts for each lesson.

12 Lessons in Chapter 33: Praxis Biology & General Science: Pollution and Agriculture
Test your knowledge with a 30-question chapter practice test
Pollution: Physical, Chemical & Biological

1. Pollution: Physical, Chemical & Biological

Pollution is the presence of unwanted substances in an environment. It is often the result of human interference. Learn about physical, chemical and biological pollutants and see examples of each.

What Is Air Pollution? - Definition, Sources & Types

2. What Is Air Pollution? - Definition, Sources & Types

In this video lesson, you will learn about the sources and types of air pollution. You will be able to identify the six classes of air pollutants identified by the Environmental Protection Agency and the Clean Air Act of 1970.

Water Pollution: Definition, Types, and Sources

3. Water Pollution: Definition, Types, and Sources

In this lesson, you will learn about the different types and sources of water pollution. You will gain an understanding of both surface water and groundwater pollution and the similarities and differences between them.

Deforestation, Desertification & Declining Biological Diversity

4. Deforestation, Desertification & Declining Biological Diversity

When trees are lost due to deforestation, the result can be a drier climate and desertification or the transformation of the once fertile land to desert. Learn how deforestation and desertification can lead to a decline in biological diversity.

Types of Agriculture: Industrialized and Subsistence Agriculture

5. Types of Agriculture: Industrialized and Subsistence Agriculture

In recent history, agriculture has been the main source of the food we consume on a daily basis. In this lesson, we will explore the difference between industrialized and subsistence agriculture. We will also investigate the different kinds of subsistence agriculture that are practiced.

Problems in Agriculture: Loss of Land and Decreased Varieties

6. Problems in Agriculture: Loss of Land and Decreased Varieties

Although we all currently rely on industrial agriculture to produce the majority of the food we eat, this type of agriculture is facing problems that may threaten its future. In this lesson, we will explore these problems and how they influence the future of food production.

Land Degradation and Habitat Fragmentation: The Environmental Impacts of Industrialized Agriculture

7. Land Degradation and Habitat Fragmentation: The Environmental Impacts of Industrialized Agriculture

Although we all need food to survive, the methods we use to produce that food can be problematic. In this lesson, we will explore how industrialized agriculture negatively impacts the environment and, as a result, makes the land less productive in producing crops and livestock.

What Are Pesticides? - Definition and Difference Between Narrow-Spectrum & Broad-Spectrum

8. What Are Pesticides? - Definition and Difference Between Narrow-Spectrum & Broad-Spectrum

The crops and livestock we use for food are constantly at risk of harm from pests. This lesson will explore the methods for managing agricultural pests, including both narrow- and broad-spectrum pesticides.

Use of Pesticides: Benefits and Problems Associated with Pesticides

9. Use of Pesticides: Benefits and Problems Associated with Pesticides

Pesticides are used worldwide to manage agricultural pests. They kill and repel unwanted pests, but also cause many human deaths each year. This lesson explores the widespread use of pesticides in agriculture and compares the benefits and problems associated with these helpful but dangerous chemicals.

Alternative Pest Control Methods for Agricultural Use

10. Alternative Pest Control Methods for Agricultural Use

There is a move to reduce the use of pesticides in favor of more environmentally friendly methods of pest control. In this lesson, we'll explore alternative pest control methods, including how they work and the benefits and issues associated with each method.

What Is Sustainable Agriculture? - Definition, Benefits and Issues

11. What Is Sustainable Agriculture? - Definition, Benefits and Issues

The word 'sustainable' has become very popular these days and is used to describe many different things. In this lesson we will explore how sustainability is associated with agriculture and the benefits and issues of this type of farming.

What is Genetic Engineering? - Definition, Benefits & Issues

12. What is Genetic Engineering? - Definition, Benefits & Issues

When most people think of genetics, they think of their own genes, but genetics is also very important in agriculture. In this lesson, we will explore genetic engineering and how it relates to agriculture. We will also investigate the benefits and issues associated with genetic engineering.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the Praxis Biology and General Science: Practice and Study Guide course

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