By How many water in earth
Earth is often called the “Blue Planet” because of its abundance of water. Here’s a breakdown of how much water exists on Earth:
Total Water on Earth
- Volume: Approximately 1.386 billion cubic kilometers (km³) or 332.5 million cubic miles.
- This includes all forms of water: oceans, ice caps, groundwater, rivers, lakes, and atmospheric water.
Distribution of Earth’s Water
- Oceans
- Percentage: ~97.5%
- Oceans hold the vast majority of Earth’s water and are saline.
- Freshwater (Total ~2.5% of Earth’s water)
- Ice and Glaciers: ~68.7% of freshwater (mostly in Antarctica and Greenland).
- Groundwater: ~30.1% of freshwater.
- Surface Water and Other Freshwater: ~1.2% of freshwater.
- Surface Water Distribution (Part of the 1.2% freshwater)
- Lakes: ~20.9%.
- Soil Moisture: ~3.8%.
- Atmospheric Water: ~3%.
- Rivers: ~0.49%.
- Biological Water (in living organisms): ~0.26%.
Accessible Freshwater
Only about 0.3% of all freshwater on Earth is readily accessible for human use, mainly from lakes, rivers, and shallow groundwater.
Earth’s water cycle ensures a dynamic redistribution of water across these reservoirs, making it an essential part of supporting life and ecosystems.
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