Main reason of water bloom in rivers, lakes, sea etc., is

Brown algae and Green algae

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Cyanobacteria and Dinoflagellates

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Eichornia

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Fishes

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Cyanobacteria and Dinoflagellates
Water bloom is a dense aquatic population of microscopic photosynthetic organisms produced by an abundance of nutrient salts in surface water, coupled with adequate sunlight for photosynthesis. The microorganisms or the toxic substances that they release may discolour the water, deplete its oxygen content, poison aquatic animals and waterfowl, and irritate the skin and respiratory tract of humans. It majorly caused because of Cyanobacteria and dinoflagellates.
Therefore, the correct answer is option B.

Suggest Corrections

Similar questions

Algae bloom phenomenon occurs at rivers and lakes due to

How does the water in rivers, lakes, seas, and oceans never get over? Explain. [3 MARKS]

Which of the following statement(s) is/are correct with regard to causes of water pollution?

Statement I: The discharge of sewage and garbage into river water is one of the main cause of water pollution.

Statement II: Contamination of rivers, lakes, etc., with heavy metals like lead, mercury, etc., can harm both aquatic and human beings.

Join BYJU'S Learning Program