Have you ever been underwater?   Scuba divers carry their own source of breathing gas,
yes i like scuba diving
Unfortunately, Immersion in water and exposure to high ambient pressure have physiological effects
wow i havent been that deep before
 Humans are not physiologically and anatomically well adapted to the environmental conditions of diving
thats why i always wanted to be a fish, i love water
One way to enjoy is  Ecology (from , "house", or "environment"; -λογία, "study of") the scientific study of interactions
interesting
Natural, social, and formal science make up the fundamental sciences
I used to study that in school, my fave subjects