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“If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys.” Which function of wetlands best reflects this statement?

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1. “If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys.” Which function of wetlands best reflects this statement?

The water cycle in wetlands involves surface runoff, subsoil percolation and evaporation

Algae form the nutrient base upon which fish, crustaceans, molluscs, birds, reptiles and mammals thrive

Wetlands play a vital role in maintaining sedimentation balance and soil stabilization

Aquatic plants absorb heavy metals and excess nutrients

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“If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys.” Which function of wetlands best reflects this statement?

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