Question

sound will travel slowest through which of the following forms of matter? desk door milk air

Explanation:

Sound travels through matter by vibrating particles. In gases (like air), particles are far apart, so vibrations transfer slower. Solids (desk, door) and liquids (milk) have closer particles, allowing faster sound travel. So air is the medium where sound travels slowest.

Answer:

D. air (assuming the options are A. desk, B. door, C. milk, D. air; if option identifiers differ, adjust to match, e.g., the rightmost option labeled "air")