4. treatment and rehabilitation As a means to reduce the resource by therapies degraded before, such as waste water from households or industrial plants, etc. Prior to release into the public water source. The reconstruction is to resurrect the original condition, return to nature, such as planting mangroves to restore the balance of the mangrove forest to return to fertility, etc. 5. Another alternative to use) as a way to help with the use of natural resources, and no damage to the environment, such as the use of plastic bags instead of using banana instead of foam. Sun energy instead of mineral fuel. The use of biological fertilizers instead of chemical fertilizer, etc.
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