By late 1920s most alcohol was made at home. Alcohol was made at home is the illegal
'stills' because deaths from purposely poisoning alcohol went up from 98 in
1920 to 760 in 1926. The homemade
alcohol was known as moonshine.
The force that attracts all matter to each other is gravity, i believe.
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