作者:Valencia Low 13 年以前
476
Man and the enviorment
Man and the enviorment
Negative impact
Pollution
Posion gases, Human waste etc.
Caused by~
Acid rain, Reducing ozone layer, Global warming.
Deforestation
Soil Eroson,LandSlides And Global Warming
Positive impact
Human impact on the natural environment
Natural environment is of crucial importance for social and economic life. We use the living world as~
a resource for food supply
an energy source
a source for recreation
a major source of medicines
natural resources for industrial products
Source for recreation. natural sources for industrial products.
man made materials
Alloys, Plastic, Ceramics
Better quality food and medicines