what do the terms algal bloom and red tides signify?

Dear Student,

Red Tide is caused due to the population explosion of tiny, single celled algae. When these algae are present in high concentration (algal bloom) the colour of that particular area appears to be red. Thus, it is called red tide. The algal blooms are responsible for red tide as they could cause depletion of dissolved oxygen, release of toxins, etc.

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