The percentage of earth's water found in the oceans is ______.

The correct answer is 97.2 per cent.

Key Points

• 97.3 per cent of the water on earth is found in the oceans.
• The ice caps contain 2% of the world's water.
• 0.68 per cent of all water comes from groundwater.
• Rivers make up less than 0.0001 % of all water.
• In comparison to inland seas and salt lakes, freshwater lakes contain 0.009% of the earth's water.
• 0.0019 per cent of the water on Earth is in the atmosphere.

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Additional Information

• Fresh water sources:
  • Water that seeps further into the soil through porous materials is known as groundwater.
  • It fills cracks and pores in aquifers, or layers of subterranean rock.
  • Some of this water is too deep underground to be retrieved at a reasonable price.
  • Surface-water runoff is precipitation that drains into bodies of water including streams, rivers, lakes, wetlands, and reservoirs but does not seep into the earth or return to the atmosphere.
  • The amount of water in 10 cm of snow is roughly equivalent to 1 cm of rain.