Ch 20: Holt McDougal Environmental Science Chapter 20: The Environment and Human Health

About This Chapter

The Environment and Human Health chapter of this Holt McDougal Environmental Science Companion Course helps students learn the essential lessons associated with the environment and human health. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Environment and Human Health textbook chapter.

How It Works:

  • Identify the lessons in the Holt McDougal Environment and Human Health chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover the environment and human health topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Environmental pollutants and toxic agents
  • How environmental hazards are evaluated
  • How environmental pollution impacts human health
  • Global health concerns in today's world
  • How infectious diseases spread
  • How disease is prevented and controlled
  • The link between environmental change and diseases

Holt McDougal is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

7 Lessons in Chapter 20: Holt McDougal Environmental Science Chapter 20: The Environment and Human Health
Test your knowledge with a 30-question chapter practice test
Environmental Toxicants: Types, Sources & Effects

1. Environmental Toxicants: Types, Sources & Effects

In this video lesson, you will identify different types of environmental toxicants. You will also learn about the harmful effects of these toxicants and how they travel from various sources.

Understanding & Assessing Threats to Environmental Health

2. Understanding & Assessing Threats to Environmental Health

In this lesson you will learn how threats to environmental health are assessed. You will also learn how management decisions are made based on such threats and their risks.

The Dose-Response Curve: Determining Health Effects of Environmental Pollutants

3. The Dose-Response Curve: Determining Health Effects of Environmental Pollutants

In this video lesson, you will learn about dose-response curves and how toxicologists measure the toxicity and effects of toxicants. You will also learn about how this data is applied to human health.

Types of Global Health Issues

4. Types of Global Health Issues

The following lesson will define what a global health issue is and discuss the cause for their spreading, as well as provide examples of major global health issues. A short quiz will follow the lesson.

The Different Routes of Infectious Disease Transmission

5. The Different Routes of Infectious Disease Transmission

This lesson will discuss the different ways you can get sick. We'll discuss how pathogenic microbes can be transmitted to you or someone else as we explore horizontal and vertical transmission as well as vectors, vehicles, and fomites.

Disease Control & Prevention

6. Disease Control & Prevention

This lesson will discuss the many different ways by which people can control disease. Everything from vaccination to sterilization and beyond will be mentioned so that you can better appreciate the large arsenal of tools at our disposal.

Emerging Diseases Linked to Environmental Change

7. Emerging Diseases Linked to Environmental Change

In this video lesson, you learn about why some diseases are increasing on Earth due to environmental changes. You'll also see examples of different types of diseases that are responding to environmental changes and how they are becoming more prevalent.

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

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