Answers

2016-07-17T22:35:24+08:00
1. Changes in land use

2. Deforestation leads to erosion, flooding, decrease in CO2 sequestration (hence increase in greenhouse gases), and loss of habitat (extinction).

3. Industrialization and  development of technology may lead to pollution and over hunting (extinction).

4. The use of renewable energy sources reduces pollution and greenhouse gases.
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