<em>Optimize means, modifying a system that may be a computer program, and/or a collection of computers or even network such as internet.</em>
Thanks,
<em>Deku ❤</em>
Answer:
Japanese is educated place so they invent those things which are really good and helpful...
in my opinion it is safe....
Answer:
troposphere
he troposphere begins at the Earth's surface and extends up to the stratosphere. It contains roughly 80 percent of the mass of the entire atmosphere and is where most familiar weather patterns form.