Answer:
Part carbon part water I am poison to the fishes. Many falsely claim my name I am the pause that refreshes.
I am in truth a yellow fork from tables in the sky by inadvertent fingers dropped the awful cutlery. Of mansions never quite disclosed and never quite concealed the apparatus of the dark to ignorance revealed.
I have an eye but cannot see. I am fast but I have no limbs. What am I?
I save lives on the ground and in the air
If there is a bee in my hand, what is in my eye?
Give it food and it will live, give it water and it will die.