question: Most of the fresh water on earth is tied up in a solid form. what are they called?
distractor3: oceans
distractor1: sediments
distractor2: lakes
correct_answer: glaciers
support: Most of Earth’s water is salt water in the oceans. As Figure below shows, only 3 percent of Earth’s water is fresh. Freshwater is water that contains little or no dissolved salt. Most freshwater is frozen in ice caps and glaciers. Glaciers cover the peaks of some tall mountains. For example, the Cascades Mountains in North America and the Alps Mountains in Europe are capped with ice. Ice caps cover vast areas of Antarctica and Greenland. Chunks of ice frequently break off ice caps. They form icebergs that float in the oceans.