canyon desert swamp river
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Laundry detergents were once manufactured to contain high concentrations of phosphorus compounds. When waste water containing these compounds ran off into lakes, the phosphorous became a nutrient to algae. As algae populations increased in the lakes, succession accelerated. Over a long time, which would a lake become as a result of the phosphorous in the detergent?
Possibilities:
- canyon
- desert
- swamp
- river

swamp