Answer:
If i'm not mistaken the answer is eutrophic
Explanation:
The algae has no plants to feed on and in turn makes them feed of oxygen and makes less suitable for any type of plant life.
Radiation: is the emission or transmission of energy in the form of waves or particles through space or through a material medium.
Examples: Radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation
I did this in my class a year ago and as far as i remember it was in the 1700 but i think 1767 to be exact