What are the fluid-filled internal chambers of the brain called?

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

sorry, is there a picture? i do not see any arrows.

wut? unius0123 wut?

for a different answer set the answer would be because the oxygen in the water had depleted (apex)