In the context of algal bloom it can block the sunlight from reaching other organisms deplete oxygen...........

Environment and Ecology Water Pollution

In the context of algal bloom, it can block the sunlight from reaching other organisms, deplete oxygen levels in the water,

and some algae even secrete toxins into the water due to:

1. Phosphates are introduced into water systems.

2. Excess of nutrients may originate from fertilizers that are applied to land for agricultural or recreational purposes.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 Nor 2

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Explanation:

An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and is recognized by the discoloration in the water from their pigments. Cyanobacteria were mistaken for algae in the past, so cyanobacterial blooms are sometimes also called algal blooms.