Arecent national study revealed that percent of u. s. 15-year-olds met the federal government's exercise recommendations on weekdays.

The national study recently revealed that 31% or almost half of the 15-year-old teens met the federal government exercise recommendations on weekdays. So many of the 15 year old has enjoying there exercise every weekdays because it has no classes so they have much time to do exercise.

1.world in spatial terms2.places and regions 3.human systems4.physical systems5.geography and it's uses6.environment and society

True. you know, tools like shovels.