Answer:
Because, a natural hazard is a threat of a naturally occurring event will have a negative effect on humans.
Explanation:
21%............................
The ozone layer protects us from the harmful emission of rays directly to the environment. Absent this added layer of protection we humans will be susceptible to various forms of cancer due to over radiation and eye problems such as cataracts. It is estimated that 10% of the world's population will face the consequences of ozone depletion this year and these numbers were continue to rise as time progresses.
<span>Elements of ecosystems are mutually dependent on each other.</span>
