Air purification capacity decreased, the oxygen content decreased, serious noise pollution, climate regulation have smaller, forests and dust filtration of sewage of smaller animals threatened.
Air purification capacity is reduced, oxygen content is reduced, noise pollution will be serious, climate regulation will be smaller, forest dust and sewage filtration effect is smaller, animals are threatened.
With the decrease of air purification capacity, oxygen content, noise pollution, climate regulation, forest dust removal and sewage filtration, animals are threatened.