Answer:
The pelagic zone refers to open and free waters in the body of the ocean that stretch between the ocean surface and the ocean bottom and are not too close to some boundary, like a shore or the seafloor or the surface.
Explanation:
I believe these are the answers:
1. independent variable
2. dependant variable
It is dependent on the availability of nutrients. Hope this helped:)
Your answer could be Chemical
Touch would be the feeling of the perfume/ touch
Light would be the vision
Sound would be the hearing/ sound
Hopefully, this make it more understanding
