One gummy bear is placed in tap water and another gummy bear is placed in salt water. The change in their mass is measured after a day. What is the independent variable? *

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.

a

explanation: