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

you would expect a sound wave to speed up. - b)

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.