How the association of teenagers in the united states?

Explanation and

Today, there are almost 42 million adolescents between the ages of 10 and 19 in the United States, and adolescents make up 12.9 percent of the population.1 As the U.S. population ages, adolescents will represent a smaller proportion of the total. By 2050, estimates show that adolescents will make up 11.3 percent of the population.1 While adolescents are predicted to represent a smaller portion of the total population, estimates show that the number of adolescents in the population will continue to grow, reaching almost 44 million in 2050.1

yes peace and development are complementary to each other since they both undergo a great deal of getting where they want to go whether its peace in general and. development

answer; through play and social interaction;