Why does the rate of enzymatic reactions slow down over time?

The teacher is mostly talking about the distillation of a mixture

Change in speed or direction : )

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy

Radioactive fallout is a result of the fission creation used to ignite the thermonuclear fusion reaction.