Chapter 3 Biology 9

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Biology 9 Lesson 55: Environmental pollution (continued)

Biology 9 Lesson 55: Environmental pollution (continued) 1. Theoretical Summary – There are many different measures to prevent environmental pollution. – Each person needs to have a sense of responsibility in environmental protection and ecological landscape protection. 1.1. Limit air pollution + Cause: due to waste from a number of activities such as transportation, industrial …

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Biology 9 Lesson 56-57: Practice: Understanding the local environmental situation

Biology 9 Lesson 56-57: Practice: Understanding the local environmental situation 1. Theoretical Summary – Review the knowledge of the lessons: Lesson 54: Environmental pollution. Lesson 55: Environmental pollution (continued). – Prepare practical tools: Tables 56.1 and 56.3. Paper, pens, worksheets. 2. Practice Procedure a. Investigate the situation of environmental pollution Step 1: Before investigating the …

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Biology 9 Lesson 54: Environmental pollution

Biology 9 Lesson 54: Environmental pollution 1. Theoretical Summary 1.1. Define – Environmental pollution is a phenomenon in which the environment is dirty, and at the same time the physical, chemical and biological properties of the environment are changed, causing harm to the life of humans and other living things. – Cause: Pollution is mainly …

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Biology 9 Lesson 53: Human impact on the environment

Biology 9 Lesson 53: Human impact on the environment 1. Theoretical Summary 1.1. Human impact on the environment. People through different historical periods have affected the living environment. a. Primordial times Know how to use fire to cook, keep warm and drive away wild animals. Burning forests, digging holes to hunt wild animals → reducing …

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