Analysis of information sources in references of the Wikipedia article "இயற்கை" in Tamil language version.
[a Lake is] any relatively large body of slowly moving or standing water that occupies an inland basin of appreciable size. Definitions that precisely distinguish lakes, ponds, swamps, and even rivers and other bodies of nonoceanic water are not well established. It may be said, however, that rivers and streams are relatively fast moving; marshes and swamps contain relatively large quantities of grasses, trees, or shrubs; and ponds are relatively small in comparison to lakes. Geologically defined, lakes are temporary bodies of water.
{{cite book}}: |access-date= requires |url= (help); |archive-url= requires |url= (help); Unknown parameter |chapterurl= ignored (help), which takes global average weight as 60 kg.), the total human biomass is the average weight multiplied by the current human population of approximately 6.5 billion (see, e.g., "World Population Information". U.S. Census Bureau. பார்க்கப்பட்ட நாள் 28 September 2006.): Assuming 60–70 kg to be the average human mass (approximately 130–150 lb on the average), an approximation of total global human mass of between 390 billion (390×109) and 455 billion kg (between 845 billion and 975 billion lb, or about 423 million–488 million short tons). The total biomass of all kinds on earth is estimated to be in excess of 6.8 x 1013 kg (75 billion short tons). By these calculations, the portion of total biomass accounted for by humans would be very roughly 0.6%.{{cite web}}: Unknown parameter |= ignored (help){{cite web}}: Check date values in: |archive-date= (help){{cite web}}: Unknown parameter |= ignored (help){{cite web}}: Unknown parameter |= ignored (help){{cite web}}: Unknown parameter |= ignored (help){{cite web}}: Check date values in: |archive-date= (help){{cite web}}: Check date values in: |archive-date= (help){{cite web}}: Check date values in: |archive-date= (help){{cite book}}: Cite has empty unknown parameter: |coauthors= (help){{cite web}}: Check date values in: |archive-date= (help) Website based on the contents of the book: Sisk, T.D., ed. (1998). Perspectives on the land use history of North America: a context for understanding our changing environment (Revised September 1999 ed.). U.S. Geological Survey, Biological Resources Division. USGS/BRD/BSR-1998-0003.{{cite web}}: Unknown parameter |= ignored (help){{cite web}}: Unknown parameter |= ignored (help){{cite web}}: Check date values in: |archive-date= (help){{cite web}}: Check date values in: |archive-date= (help){{cite web}}: Check date values in: |archive-date= (help) Website based on the contents of the book: Sisk, T.D., ed. (1998). Perspectives on the land use history of North America: a context for understanding our changing environment (Revised September 1999 ed.). U.S. Geological Survey, Biological Resources Division. USGS/BRD/BSR-1998-0003.{{cite web}}: Unknown parameter |= ignored (help){{cite web}}: Unknown parameter |= ignored (help){{cite web}}: Check date values in: |archive-date= (help){{cite web}}: Check date values in: |archive-date= (help)