Aptitude can be defined as the natural talent by which a person has the knowledge or skill of a particular body.
The general ability of a person to learn a skill, to solve problems is also known as aptitude.
It is not acquired but is inherited inside a person from the early stages of life. Example: The painting, dancing and music are some of the characters that is inborn talent in some of people.
Net ball. net ball: a ball that on the service (as in tennis and volleyball) strikes the top of the net and lands in the service court but must be served over.
D. The percentage of muscle and body fat is often defined as the mass of the body which is why this is taken into account when measuring the BMI for children and teens. It might not use all of the fat, but some parts of it is needed to measure the mass effectively.