role essential play glaciers yet cycle an these water in the

glacier-fed rivers these more of and

disrupted regions balance nature already these been has polar of in the

soon waters these be will

stood palm lands highest trees these in world the on

eucalyptus foot trees at these of the

soybeans ninety-five percent these of

secreted substances plants these the by

remedies cure us provide forests these that the

unhealthy wetlands expanses always these seen as were