"Developing a plan to protect the ecological environment" The impact of human activities on the biosphere PPT courseware 5

Description

"Developing a plan to protect the ecological environment" The impact of human activities on the biosphere PPT courseware 5

practice

Making recycled paper from waste paper

1. Cut an old newspaper or used homework paper into scraps and soak it in clean water.

2. Put the soaked paper scraps into a container with water and starch and stir into a porridge-like pulp.

3. Dip the framed window screen into the paper pulp, then gently lift the screen so that a layer of paper pulp is evenly spread on the screen, and the water in the paper pulp is controlled.

4. Spread the pulp piece on the screen over an old newspaper and cover it with an old piece of paper.

5. Use a rolling pin to roll out as much moisture as possible from the pulp sheet, and dry the pulp sheet.

Purpose requirements

1. By investigating the current situation of the local ecological environment and analyzing and discussing it, we will formulate a plan to protect the local ecological environment.

2. Recognize the responsibility of every citizen in protecting the ecological environment.

Method steps

1. Group

The class is divided into several groups, with 6 to 8 people in each group.

2. Select survey location

Investigate the ecological environment conditions around campus or in your home community.

3. Determine investigation method

You can conduct on-site surveys, consult local environmental protection departments, or collect information through libraries, newspapers and magazines, television stations, or Internet websites.

4. Select survey question

Each group chooses at least one local problem, such as forest area reduction, soil erosion, air pollution, water pollution, etc.

5. Write down specific examples of the selected problem and the measures taken in recent years.

6. Pay attention to safety during field investigations. During the investigation, the entire group of students must act collectively to achieve a clear division of labor and unity and cooperation.

7. Further collect and learn scientific knowledge about ecological and environmental protection.

Class summary

1. By investigating the current situation of the local ecological environment and analyzing and discussing it, we will formulate a plan to protect the local ecological environment.

2. Recognize the responsibility of every citizen in protecting the ecological environment.

Class exercises

1. To fundamentally solve the deterioration of the ecological environment in western my country, we must implement ( )

A. Return farmland to forest and grassland B. reclaim wasteland

C. Growing grain on steep slopes D. sewage treatment

2. To implement sustainable development strategy, which of the following is wrong ( )

A. Control population b. save resources

C. Protect the environment D. Pollution first and treatment later

3. "Insect-resistant cotton" can produce a special substance during the growth process to kill pests and achieve the purpose of biological control. The ecological value of this cotton lies in ( )

A. High efficiency in pest control B. Kills pests quickly

C. Will not cause environmental pollution D. Save human and financial resources

4. The most prominent ecological and environmental problems in western my country are ( )

A. Soil erosion B. soil desertification

C. Sandstorm D. All of the above three aspects

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For more information about the PPT courseware "The Impact of Human Activities on the Biosphere and Drawing Up a Plan to Protect the Ecological Environment", please click the "The Impact of Human Activities on the Biosphere ppt to Draw up a Plan to Protect the Ecological Environment" ppt tag.

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Update Time: 2024-11-22

This template belongs to biology courseware People's Education Press seventh grade biology book volume 2 industry PPT template

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