Is a glacier nothing more than a huge mineral flowing downhill? be sure to defend your answer with facts.

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources? (site 1)

Explain why biological control methods are generally environmentally superior to chemical pest control methods.

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.