Some of their most dedicated proponents and advocates are all wet but
somehow manage to stay afloat for a significant length of time anyway.
Science is what can explain how boats float and work.
yes
Yes, the plural noun 'boats' is a common noun, a general word for any boats of any kind.
A cardboard tube is most common
They're usuccessful
With glue or tape, possibly with markers or paint even!
Yes, "cardboard" is a common noun. It refers to a type of material used for various purposes, such as packaging and crafts, and is not the name of a specific brand or entity. Common nouns denote general items rather than unique identifiers.
beaches, boats and cars
i think cardboard is natural and also man made
Grays were a common color.
they both road on boats and did wars
They are all boats.