An increase in the plants in a pond might be the first evidence that what ?

1 Answer
May 18, 2018

Eutrophication.

Explanation:

Eutrophication occurs when nutrients in fertiliser leaches through soil and into rivers and ponds. These will contain mineral ions like nitrates and magnesium which help with making proteins for growth and magnesium for the production of chlorophyll. This will encourage the growth of algae on the surface.