Answer:
Environment, health and population are interrelated.
Explanation:
There is a great relationship among environment, health and population. Due to increase in population human in the world, more products are needed to fulfill their needs and for that more industries should be built. Because of increase number of industries, more harmful gases are emitted which cause environment pollution and with this pollution, health of the people is adversely affected so environment, health and population are interrelated to each other.
Are effective for individualized training and for classroom training.
all of the other answer seem unnecessary!!
The principle of progression talks about the requirement to increment or increase gradually the difficulty of workload. This way of workout will increase the physical strength and body stamina. If a person wants to develop more power on his legs, the frequency, time, difficulty or intensity of workout should be lengthen or increased because this will progress the muscle.
Answer:
Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity
