Answer:
it cannot be easily degraded in our environment.Like humans, animals and plants are exposed to PBTs in the environment through air, water and food. ... Persistent bioaccumulative toxic substances (PBTs) are chemicals that do not degrade easily in the environment.
Radioactive dating, depending on the certain amount of radioactive decay it leaves through the years you can predict the oldest one!
if that helped make sure to mark brainliest! <3
-procklown
Answer:
potential energy I would think
Because it makes it easier for the air to flow through our bodies.
