Yes, all living things vibrate. You are vibrating right now.
Yes they do!
Dolphins emit high pitched ultrasonic waves that reflect off obstacles. The reflected wave reaches the dolphin and the dolphin is able to estimate the distance of the obstacle. (pulse echo detection)
Light waves do not emit radiation, light waves are radiation.
Sonic waves are transverse
Sonar is a system that locates objects by transmitting sound waves and detecting the waves when they are reflected off of objects. Bats and many other animals, such as whales and dolphins, use natural sonar to navigate and capture
Classical they will emit electromagnetic waves (light and radio waves). Quantum effects might limit this since if the electrons are in the ground state (or all lower states are occupied) they can not emit any photons (quanta of electromagnetic waves).
dose scientific calculator emit sinewaves
Tsunamis
They emit: gamma rays, radio waves, and x-rays. Some stars emit T.V. rays
Through Radiation
air waves
yes
yeah, that and radio waves