What is the body system that controls growth and metabolism, and regulates reproduction, through hormones?

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart