Answer:
If I recall from my class that it healthy life sytle and may be prevented through immunization I don't remember which but i know its maintain a healthy life style
Explanation:
Water from rain and snow that travels to streams
DNA! the question is a typical descrption of it
Living things:-
-Living things are made of cells.
-Living things have and use energy.
-Living things grow and develop.
-Living things reproduce.
-Living things respond to their environment.
-Living things adapt to their environment.