Is a hole in the ozone an opinion

Explanation:

Both ozone depletion and global warming have a common cause which is human activities that release pollutants into the atmosphere. The ozone hole may not be the major cause behind climate change. There is an international agreement called the Montreal Protocol 1987  was achieved and fixed the ozone hole. The total solve of ozone depletion might remains an elusive target. I think the more significant on climate change at the current time is the global warming problem.

the telephone is the answer

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.