use of commercially produced fertilizers
Note: industrial revolution to agriculture
Hope this helps
Because North Korea gets along with us well and South Korea doesn't get along with us at all
The Proterozoic division of the geological time scale is an era of the Phanerozoic eon. The Proterozoic division began 2.5 billion years ago and ended 542.0 million years ago.
Tree thinning I'm guessing. I had just learned this recently but I could always possibly be wrong.