spirulina
I don't know the answer. I am the person who posted the question and know the answer is not moss. it starts with an s and is 7 letters (counting the s). Please answer fast!
A type of dance that starts with a letter s is salsa.
salvage
algae
Algae feed small fish which starts the food chain.
Saturn
sentra Nissan
Siberian tiger.
Algae
Yes,it is a type of algae because it is green and it is a type of plant.
No diatom is not an algae
algae. you need a sanitizer to keep it from growing!