What are the characteristics of high energy wave? A. Low frequencies and short wavelengths.

B. High frequencies and long wavelengths.

C. Low frequencies and long wavelengths.

D. High frequencies and short wavelengths

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?