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The globally important nature of wetland ecosystems has led to their increased protection and restoration as well as their use in engineered systems. Underpinni

For the past 4 billion years, the chemistry of the Earth's surface, where all life exists, has changed remarkably. Historically, these changes have occurred slo

Viewed from space, the Earth appears as a globe without a beginning or an end. Encompassing the globe is the atmosphere with its three phases- gaseous, liquid,