| Category | Format | Size |
|---|---|---|
| Beijing Normal University Edition Seventh Grade Biology Volume 2 | pptx | 6 MB |
"Protecting the biosphere is the common obligation of all mankind" PPT
Description
"Protecting the biosphere is the common obligation of all mankind" PPT
Part One: The impact of human activities on the biosphere
Impact of land use on the biosphere
At present, among the many ecological and environmental problems in our country, the problem of land desertification is the most serious. There are currently 1.689 million square kilometers of desertified land in the country, accounting for 17.6% of the country's land area, involving nearly a thousand counties (banners) across the country. The expansion rate of land desertification is 2,460 square kilometers per year, which is equivalent to the "disappearance" of a medium-sized county in land area every year.
Impact of deforestation on the biosphere
The role of forests:
Conservate water sources, maintain water and soil, prevent wind and sand, increase humidity, create oxygen, purify the air, and reduce noise
Impact of environmental pollution on the biosphere
Protecting the biosphere is the common obligation of all mankind PPT, part 2: Humans can protect the biosphere
Carry out investigation, detection, evaluation and prediction of ecological environment quality
Formulate relevant policies and regulations
Establish nature reserves and implement large-scale ecological projects
environmental protection regulations
Law of the People's Republic of China on the Prevention and Control of Radioactive Pollution
Standardization Law of the People's Republic of China
Grassland Law of the People's Republic of China
Agricultural Law of the People's Republic of China
Environmental Impact Assessment Law of the People's Republic of China
Water Law of the People's Republic of China
Cleaner Production Promotion Law of the People's Republic of China
Law of the People's Republic of China on Desertification Prevention and Control
Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, protecting the biosphere is the common obligation of all mankind PPT download, .PPT format;
For more information about the PPT courseware "Man's Responsibility in the Biosphere and Protecting the Biosphere is the Common Responsibility of All Mankind", please click on the "Man's Responsibility in the Biosphere ppt Protecting the Biosphere is the Common Responsibility of All Mankind" ppt tag.
"Protecting the biosphere is the common obligation of all mankind" PPT courseware download:
"Protecting the Biosphere is the Common Obligation of All Mankind" PPT courseware download Part One: Introduction of new lesson Human activities have caused many adverse effects on the biosphere. What are the reasons for these phenomena? How should we, living on earth, treat the earth? Learning purpose...
"Protecting the biosphere is the common obligation of all mankind" PPT download:
"Protecting the Biosphere is the Common Obligation of All Mankind" PPT Download Part One: Classroom Activities Activities Investigate the land and water resources in the region and their utilization. What issues do you think should be paid attention to in the utilization of land resources in the region? How to increase revenue, reduce expenditure and reasonably...
"Protecting the biosphere is the common obligation of all mankind" PPT courseware:
"Protecting the Biosphere is the Common Obligation of All Mankind" PPT Courseware Part One: It is urgent to protect the biosphere. Investigate the land and water resources in the region and their utilization. What issues do you think should be paid attention to in the utilization of land resources in the region? How to increase revenue and reduce expenditure...
File Info
Update Time: 2024-07-23
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