What is a question about a study of glass bottles and aluminum cans that science would not be able to answer?

Monitor and apply fix up stratorgies

What would happen if the krill were removed from the food web

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