Why echos are undesirable in a big hall​

Hell

Sound created in a big hall will persist by repeated reflection from the walls until it is reduced to a value where it is no longer audible. The repeated reflection that results in this persistence of sound is called reverberation. In an auditorium or big hall excessive reverberation is highly undesirable

Explanation:

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Hello There!

Explanation:

In physics, reverberation produces echo and as a result that makes undesirable sound.In a big hall, it interferes with the actual sound. It gives confusion when people are having a conversation and also because it interferes with the original sound.

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~Pinky~

porque la cantidad de gases de efecto invernadero alcanzó un nuevo máximo sin precedentes, causando daños muy graves a esta, por eso es importante monitorearla, para controlar el porcentaje de daños que esta causa y poder reducirlo o mantenerlo.