Q. Which of the following is / are largest reservoir(s) of freshwater? Answer:
Glaciers
Notes: The largest water reservoir is the ocean, containing 97.3% of all water on Earth. Only 2.8 % of all the water on Planet Earth is fresh water. Three-quarters of all fresh water on Earth is frozen in glacier ice. So glacier ice is the second largest reservoir of water on Earth and the largest reservoir of fresh water on Earth.