Explain two reasons why sea ice so important to a polar bear.

This loss of stable old ice has set up additional losses of sea ice cover each summer because the thinner younger ice is more easily melted during the recent warmer summers. Because of their dependence upon the sea ice for food, these changes can directly affect the carrying capacity of the Arctic for polar bears. Mark this as the brainliest answer please

It indicates no change in temperature and the process of matter changing its state

It is d, all the other ones say incorrect answer .