Answer:
The stratosphere
Explanation:
Approximately 90 % of the ozone layer resides in the stratosphere and rest 10 % resides in the troposphere .
<u>Stratosphere -</u>
It is the second major layer of the atmosphere , present exactly above the troposphere layer .
The stratosphere has a layers with warmer and cooler region , the warmer layers are present above the cooler layers .
Grain is t<span>he speckled appearance of a rock </span>
I think the last one but don’t quote me on that
