Unit 9. Preserving the Environment. Lesson 8. Looking back - project
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(Tài liệu chưa được thẩm định)
Nguồn:
Người gửi: Nguyễn Na Na
Ngày gửi: 12h:34' 23-02-2020
Dung lượng: 12.5 MB
Số lượt tải: 219
Nguồn:
Người gửi: Nguyễn Na Na
Ngày gửi: 12h:34' 23-02-2020
Dung lượng: 12.5 MB
Số lượt tải: 219
Số lượt thích:
0 người
Presentation :
Water pollution
Bui Vi Cam
Nguyen Thi Phuong
Le Thu Hang
Pham Hong Ha
Desinged by group 3 :
Water pollution
What does water pollution means?
Water pollution facts
Up to 90 % of wastewater in developing countries flows untreated into rivers, lakes and highly productive coastal zones, threatening health, food security and access to safe drinking and bathing water
In developing countries, 70% of industrial wastes are dumped untreated into waters where they pollute the usable water supply
Only 1% of the earth´s surface is covered with freshwaters but they are habitat for over 10% of all animals and over 35% of all vertebratessystems each declined by 32%
Water pollution facts
Causes and effects of water pollution
Causes of Water Pollution:
Causes and effects of Water pollution
Effects of Water pollution
Death of aquatic (water) animals
Causes and effects of Water pollution
Effects of Water pollution
Diseases
Water pollution
Bui Vi Cam
Nguyen Thi Phuong
Le Thu Hang
Pham Hong Ha
Desinged by group 3 :
Water pollution
What does water pollution means?
Water pollution facts
Up to 90 % of wastewater in developing countries flows untreated into rivers, lakes and highly productive coastal zones, threatening health, food security and access to safe drinking and bathing water
In developing countries, 70% of industrial wastes are dumped untreated into waters where they pollute the usable water supply
Only 1% of the earth´s surface is covered with freshwaters but they are habitat for over 10% of all animals and over 35% of all vertebratessystems each declined by 32%
Water pollution facts
Causes and effects of water pollution
Causes of Water Pollution:
Causes and effects of Water pollution
Effects of Water pollution
Death of aquatic (water) animals
Causes and effects of Water pollution
Effects of Water pollution
Diseases
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