Which class of pollutants can cause excessive growth of algae? 

A)  oxygen-demanding waste 
B)  plant nutrients 
C)  radioactive substances 
D)  organic chemicals

Excessive Growth

An unsustainable increase in the size or number of something, often leading to negative consequences such as environmental degradation or economic instability.

Algae

A diverse group of aquatic organisms capable of photosynthesis, often considered the base of many aquatic food webs.

Plant Nutrients

Essential minerals and compounds that plants require for growth and development, including nitrogen, phosphorus, and potassium.