Answers

2014-10-15T11:43:52+05:30
Algal Bloom -- A rapid growth of microscopic algae or cyanobacteria in water, often resulting in a coloured suds on the surface.

Red Tides -- A discoloration of seawater caused by a bloom of toxic red dinoflagellates.
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  • Brainly User
2014-10-17T23:17:27+05:30
Red tides - very often red dinoflagellates undergo such rapid multiplication that they make the sea appear red.this is known as red tides.

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