Many synthetic organic compounds such as plastic polymers, and a few natural ones, contain halogen atoms; these are known as halogenated compounds or organic halides. Chlorine is by far the most abundant of the halogens in seawater, and the only one needed in relatively large amounts (as chloride ions) by humans.
What is the difference between a tsunami and a tidal wave? Although both are sea waves, a tsunami and a tidal wave are two different and unrelated phenomena. A tidal wave is the wave motion of the tides. A tidal wave is a shallow water wave caused by the gravitational interactions between the Sun, Moon, and Earth.
Strictly speaking, a tidal wave is one caused by the movement of the tide, which in turn results from the imbalanced, extraterrestrial, gravitational influences of the moon, sun, and planets, whereas a tsunami is specifically generated by a violent, impulsive undersea disturbance or activity near the coast or in the ocean, such as an earthquake, ...