Why is ice so important to the survival of the polar bear in the arctic? will vote brainliest. a. the polar bears can’t outswim the seals, so they sit quietly on an ice platform and attack the seals when they come up for air. b. the polar bears are hibernating for longer periods of time, so they are not able to get the food necessary to survive. c. the sea ice is important because the polar bears use the ice to go on their migration to warmer land areas d. the sea ice provides a place for the polar bears to take a nice nap in the sunshine.

i believe the answer would be b. hope it : )

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.