Science Fill in the blank

Echoes are caused by the __________ of sound. (Reflection, Refraction, Diffraction)

A sound wave consists of places of higher pressure called compressions and places of lower pressure called __________. (Rarefactions, Compressions, Nodes)

Sound is caused by __________. (Vibrations, Air, Pressure)

Bats detect their prey with the help of __________ squeaks. (Echolocation, Ultrasonic, Infrared)

The speed of sound in a solid is __________ than the speed of sound in air. (Lesser, Greater, Equal)

Music is a sound of rich __________. (Rhythm, Pitch, Noise)

Sound cannot travel through __________. (Vacuum, Air, Water)

When the frequency of the sound is increased, the wavelength __________. (Increases, Decreases, Remains constant)

Loudness of sound depends on __________. (Wavelength, Amplitude, Frequency)

Pitch of sound depends on __________. (Frequency, Amplitude, Speed)

Quality of sound depends on __________. (Amplitude, Waveform, Frequency)

Separation between a compression and rarefaction is __________ the wavelength. (Longitudinal, Half of, Equal to)

An echo is simply a __________ sound. (Reflected, Absorbed, Transmitted)