It looks like you're referring to the distribution of water on Earth. From your context, it seems you want to categorize the types of water. Here’s how the classifications typically work:
-
Salt Water: This is found in oceans and seas and makes up about 97% of the Earth's total water.
-
Fresh Water: This is water that is not salty and is suitable for drinking and irrigation. Freshwater is a small fraction of total water.
- Ice: A significant portion of freshwater is stored in glaciers and ice caps.
- Rainwater: This is a part of the freshwater resources that replenishes rivers, lakes, and groundwater.
Based on your context, since much of the water exists in the form of frozen glaciers and ice caps, it may imply that the usable fresh water is limited compared to total freshwater availability.