No, polar bears does not migrate.
C: The arrangement and movement of the particles in the substance. Solid particles vibrate and are compact. Liquid slide past each other and are close together. Gas particles are fast moving and very spread out.
Sunlight is transferred
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Answer:
D, they are all the same size.
Answer: 1. Magnetic lines of force start from the North Pole and end at the pole, they're continuos through the body of the magnet
, Magnetic lines of force can meet up with iron more easily than air.
, Two magnetic lines of force can't intersect one another, they have a tendency to contract longitudinally., they have an inclination to expand laterally.