Which of the following statements about the speed of sound at 26 degrees celius in various mediums is/are true?

 Speed of sound in aluminum is$6120 \mathrm{m}/\mathrm{s}$

Speed of sound in nickel is $6340 \mathrm{m}/\mathrm{s}$

In Nickel speed of sound is $6040 \mathrm{m}/\mathrm{s}$ 

In Aluminium, the speed of sound is $6420 \mathrm{m}/\mathrm{s}$

The temperature of the medium determines the speed of sound in that medium.

The medium's pressure is measured in pounds per square inch.

When we go from a solid to a gaseous state, the speed of sound slows down.

The speed of sound increases as the temperature rises in any medium.

The vibration of various objects causes sound to be produced.

The sound wave travels through the medium as compressions and rarefactions.

Longitudinal waves are sound waves.

Infrasound or infrasonic sound refers to sounds with frequencies below 20Hz.

Rhinoceroses communicate by emitting infrasound with a frequency of 5Hz.

Infrared sound is produced by whales and elephants.

Ultrasonic sound, or ultrasound, is defined as frequencies greater than 20 kHz.

Dolphins, bats, and porpoises all produce ultrasound.