Its basically saying something (object) at rest is going to stay there until something moves it like an outside object.
Yes, it is. hope this helps.
I would go with c because its tells you right in there that the ecosystem help who lives around that area.
<span>The best and most correct answer among the choices provided by the question is the first choice. One can adapt to the sunny environment by wearing sunglasses. I hope my answer has come to your help. God bless and have a nice day ahead!</span>