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.
Answer:
Refraction is the change in direction of waves that occurs when waves travel from one medium to another. Refraction is always accompanied by a wavelength and speed change. Diffraction is the bending of waves around obstacles and openings.
Answer:
A shark's skeleton is made of cartilage , a type of strong but flexible tissue .Most other fish are covered in smooth , flat scales . A shark is covered in sharp , toothlike scales called denticles . Most other fish have flaps over their gills.
Explanation:
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Solidified, solidifying. 1. to make solid; make into a hard or compact mass; change from a liquid or gaseous to a solid form. 2. to unite firmly or consolidate.
