The correct answer is option 2 percent.
It is estimated that the total amount of the water present on the earth covers 71 percent of the earth surface. Out of the total water most of the water is present in the seas, which is not a source of the fresh water.
The fresh water is only present in the form of glaciers and the water flowing in the lakes and the rivers. The fresh water source occupies approximately 3% of the total water present on the earth. Hence, the value closely related to the amount of the fresh on the earth is 2 percent.