Im not sure but i believe it could be C
dude, you asked brainly the whole worksheet?? Do it yourself sreerag!!
He difference between acute stress and chronic stress is one of severity and time. Acute stress is short lived and may not have very severe effects on you. Chronic stress is when you are under stress<span> on an ongoing basis and can lead to physical disease, mental disorder and spiritual dark nights of the soul.</span>
The right choice of them is biosphere, community, and organism.
Answer:
D.A substance that is produced during a chemical reaction
