(a) X-rays are absorbed by the atmosphere, although visible and radio waves can get through.
(b) The ozone layer absorbs ultraviolet energy from the sun, preventing it from reaching the earth’s surface and harming life.
(a) X-rays are absorbed by the atmosphere, although visible and radio waves can get through.
(b) The ozone layer absorbs ultraviolet energy from the sun, preventing it from reaching the earth’s surface and harming life.