About This Chapter
Praxis Biology: Human Impacts on the Environment - Chapter Summary
In this chapter, the instructor will discuss the relationship between human beings and the environment, with a focus on the same subject matter found on the Praxis Biology test. To help you answer the exam questions correctly, the lessons include the following topics:
- Fossil fuels, including their advantages and disadvantages, greenhouse gases and global warming
- Definition and differences between renewable and non-renewable resources
- Chemical, biological and physical pollutants, including air and water pollution
- Declining biological diversity, deforestation and desertification
- Conservation biology and ecological restoration
- How mineral are extracted and processed, including environmental impacts
- Definitions, benefits and issues associated with the green revolution, sustainable agriculture and sustainable forest management
These topics are discussed in an easy-to-follow video presentation, where the instructor uses examples and illustrations to help you understand the information. At the end of the lesson, you'll also find a summary that can further help you prepare for the Praxis Biology Exam.
Objectives of the Praxis Biology Test: Human Impacts on the Environment Course
The Praxis Biology test is designed to assess how prepared potential teachers are to teach biology at the secondary school level. Available in both computer-based and paper form, it consists of 150 multiple-choice questions, with approximately 7% of the questions related to the issue of science, technology and society. Developed in conjunction with content specialists, educators and high school biology teachers, the test reflects both the National Science Education Standards and those set by the National Science Teacher Association.
Every lesson in the Human Impacts chapter is accompanied by an online quiz, which provides you with an easy way to see how well you absorbed the major points of the tutorial. In terms of content and presentation, these questions are very similar to the ones found on the actual exam.
1. What Are Fossil Fuels? - Definition, Advantages & Disadvantages
Fossil fuels are sources of energy that have developed within the earth over millions of years. Because fossil fuels - oil, natural gas, and coal - take so long to form, they are considered nonrenewable. Learn more about these fuels, including the pros and cons of using them.
2. Fossil Fuels, Greenhouse Gases, and Global Warming
In this video lesson, you'll learn what roles fossil fuels and greenhouse gases play in global warming, as well as what life on Earth can expect due to rising carbon dioxide levels within Earth's atmosphere.
3. Renewable & Non-Renewable Resources: Definition & Differences
We use a variety of Earth's resources, but not all of them will be around forever. This lesson explains the difference between resources that can be regenerated for our use and those that are gone after they are used once.
4. 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.
5. 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.
6. 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.
7. Deforestation: Definition, Causes & Consequences
Deforestation is the clearing of trees without the intent of replacing them or reestablishing a stand of trees. Learn reasons for deforestation and discover the consequences of this process in all forests, including tropical forests.
8. 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.
9. Ecology Restoration: Foundations, Projects and Goals
In this lesson you will learn how humans have damaged various ecosystems on the planet and how a branch of ecology, restoration ecology, aims to restore these ecosystems. You will discover the main goal of restoration ecology as well as some of the ways habitats are restored.
10. Extraction and Processing of Minerals & the Environmental Impacts of Mineral Use
In this lesson, you will learn about the different methods used to extract minerals from the ground and gain an understanding about how different types of mining affect the environment.
11. What Is Conservation Biology? - Definition & Principles
Conservation biology aims to reduce the human impact on the environment by looking for the causes and possible solutions to these problems. In this lesson, you'll learn about conservation biology and the different types of conservation.
12. Environmental Sustainability: Definition and Application
Environmental sustainability allows for the needs of man to be met without jeopardizing the ability of future generations to meet their needs. Learn applications of environmental sustainability, including sustainable agriculture, forestry and energy.
13. Sustainable Development within Environmental Limits
Sustainable development is a way of meeting the needs of both present and future generations. Learn how sustainable development must work within the environmental limits so future generations can benefit from the rich resources of the environment.
14. What Is the Green Revolution? - Definition, Benefits, and Issues
Over the years many significant agricultural changes have occurred in order to supply enough food for the growing human population. In this lesson, we will explore the Green Revolution and investigate the benefits and issues associated with this period.
15. 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.
16. What Is Sustainable Forest Management? - Definition and Examples
Sustainable forest management ensures that forest resources are preserved to meet the needs of future generations. Learn about sustainable forest management and see examples of how it is put into practice.
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Other chapters within the Praxis Biology (5235): Practice & Study Guide course
- Praxis Biology: Science Principles - Processes and Disciplines
- Praxis Biology: Science Principles - Hypotheses, Theories and Change
- Praxis Biology: Science Principles - Numbers
- Praxis Biology: Science Principles - Interpretation and Models
- Praxis Biology: Laboratory Safety
- Praxis Biology: Laboratory Equipment & Measurements
- Praxis Biology: Molecular Structure Basics
- Praxis Biology: Chemical Reactions
- Praxis Biology: Biological Molecules and Processes
- Praxis Biology: Cellular Energy Flow
- Praxis Biology: Cell Structures and Functions
- Praxis Biology: Cellular Division
- Praxis Biology: DNA and Replication
- Praxis Biology: RNA and Gene Expression
- Praxis Biology: Mutations and Other Genetic Changes
- Praxis Biology: Biology Lab Techniques
- Praxis Biology: DNA Technology
- Praxis Biology: Genetics and Inheritance
- Praxis Biology: Human Genetics
- Praxis Biology: Species, Populations and Evolution
- Praxis Biology: Origin of Life on Earth
- Praxis Biology: Classification of Organisms
- Praxis Biology: Human Anatomy and Physiology
- Praxis Biology: Immunology
- Praxis Biology: Animal Reproduction and Development
- Praxis Biology: Plant Biology
- Praxis Biology: Plant Reproduction & Growth
- Praxis Biology: Population Ecology
- Praxis Biology: Ecosystem Ecology
- Praxis Biology: Environment and Society
- Praxis Biology Flashcards