The frequency of a sound wave is the rate of oscillation or vibration of the wave and is measured in cycles/sec or Hertz (Hz). Sound waves propagating underwater are alternating compressions and rarefactions (decrease in density and pressure of sound wave) of the water. They travel through the air and get refracted when they pass through a medium with gradually varying properties (e.g. water).
Sound waves are transmitted through water as a pressure waves (repeating pattern of high-pressure and low-pressure regions). Longitudinal and transverse pressure waves cause vibrations of water particles. Low-frequency sounds are classified as high intensity sound that is transmitted by high intensity pressure waves. High intensity pressure waves cause greater vibrations of water particles which pose as disturbances that negatively affect the hatching process of brine shrimp eggs by hampering it.
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