Are responsible for the hole in the ozone layer chlorofluorocarbons (cfcs) carbon monoxide’s sulfur oxides nitrantes

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of