There’s not really a definite answer- but the most lethal drops occur from 20-50 feet, yet there have been cases of phonomena in which someone can survive a fall from a plane.
Biologically speaking, metabolism is the sum of all chemical processes within the body, though it is often referred to as those which involve digestion and cellular respiration.
That said, the answer here should be B: <span>The process by which the body gets energy from food.
For the record, A is the definition of puberty, C is likely the definition of hormones, and D is the definition of adolescence.
</span>
Digestion is the breakdown of food into smaller particles or individual nutrients<span>. It is accomplished through six basic processes, with the help of several body fluids—particularly digestive juices that are made up of compounds such as saliva, mucus, </span>enzymes<span>, hydrochloric acid, bicarbonate, and </span>bile<span>.</span>
The chemicals used only last for a short time, usually about 6 months, although this varies from person to person. So colour or curl will 'fall' out after a while.
Even if the process was permanent, your hair continues to grow, so the colour or curl will not be in the hair coming out of your scalp.
The term, 'permanent' was invented because this treatment lasts a lot longer than a rinse or hair curlers.
