Question

what do you understand by red Tides how these tights are harmful for marine life​

Answer 1

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Red tide, discoloration of sea water usually caused by dinoflagellates, during periodic blooms (or population increases). Toxic substances released by these organisms into the water may be lethal to fish and other marine life. Red tides occur worldwide in warm seas.

Answer 2

red tides are formed by dianoflagellates they release neuro toxins which kills marine organisms