Here's a few I got off google
#1: Algae Is Efficient to Create BioFuel.
#2: Algae Can Use Land That Would Otherwise Go to Waste.
#3: Algae Can Be Used for Animal Feed.
#4: Algae Can Function As An Energy Source.
#5: Algae Can Be Used To Create Vegetable Oil.
#6: Algae is a Great Human Food Supplement.
Use which ever ones you want
