Answer:
1) Physical fitness is the ability to carry out daily tasks easily.
2) To achieve specific fitness goals, use structured, purposeful physical activity, known as exercise.
3) People whose lives include little physical activity can be described as sedentary.
Step-by-step explanation:
Physical fitness is achieved when a person is active enough to carry out his or her daily tasks without getting tired or fatigues. There are many factors which control the physical fitness of a person such as genes, nutrition and environment. Physical fitness can be maintained by performing a set of physical activities which is known as exercise. There are different types of exercises which can be performed to attain physical fitness. A person who is lazy or spends much time resting than doing physical activities is termed as sedentary.