How is pressure handled under water by sea creatures

A group of deep-sea creatures have lung-like swim bladders which help in controlling their buoyancy. The swim bladders do not collapse because in the deep sea the gas inside is equivalent to the pressure of the water outside.

Explanation:

hope this helps ;3

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.