Answer:
Health, population and environment education is introduced as an integrated subject due to profound interrelationship that exists among the subject matters of these three disciplines. The natural physical aspects and man- made things come under the physical aspect.
In order to answer this question you have to sort out all the parts the parts of the highway transportation system, to be more exact, there are only three general ones, which are: people, vehicles and roadways. Since you move on foot performing a crosswalk we can withdrawn vehicles and roadways, so the part of the HTS system that includes you is <span>roadway users.</span>
C aerobic activity muscular strething