Question

Why ecosystem provides us fresh air as well as clean water ??

Answer 1

Answer:

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Wetlands and streamside (riparian) forests are particularly important for removing fine sediments from runoff. As sediment-laden water moves across and through these ecosystems, 80-90% of the fine particles settle to the bottom or are filtered out. ... Settling of the silt removes these pollutants from the water.

Answer 2

Answer:

Ecosystem provides us fresh air as well as clean water due to different biogeochemical cycles, such as the process in which plants and animals intake water and minerals from a source and release pure water in the form of vapour. Similarly, by exchanging O2 and CO2 they help to purify air too.