If you’ve ever studied geography, looked at fossils in a museum, or even looked up at a craggy cliffside or a steep mountain, you’ll know that rocks usually take millions of years to form. However, ...
This is a preview. Log in through your library . Abstract The main goal of the study was to determine the diversity of the potential nitrogen-fixing (PNF) bacteria inhabiting agricultural (A) soils ...
Hackaday has a long-running series on Mining and Refining, that tracks elements of interest on the human-made road from rocks to riches. What author Dan Maloney doesn’t address in that series is the ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results