Respuesta :
According to the question, The hole in the ozone layer over Antarctica got smaller.
Why is the ozone layer important?
Ozone protects the Earth from harmful ultraviolet (UV) rays from the Sun. Without the Ozone layer in the atmosphere, life on Earth would be very difficult.
Thus, option "A" is correct.
To learn more about ozone layer click here:
https://brainly.com/question/14330630