Answer:
Change an unwanted behavior.
Explanation:
The following are some of the reasons we preserve our food.
Not to lose it freshness
.To prevent contamination and infection
.To prevent food from smelling
.To keep insect and other pest away from the food.
Keeps farm produce in good condition for planting in the next season
.To keep food for a long period of time.
The turbine in a hydroelectric plant take the kinetic energy to turn the generator which uses magnets to cause the electricity to start to run.
