Its quite common for some straight men to only be attracted to penises. All men generally have an dying love for their own penis so it make sense that it spreads to some other penises. But here is the things about labels you can really pick whatever you want. You can call yourself bi or straight or whatever label you want.
I just want to add all of the organic material that makes soil different from sand. Erosion will turn rocks into small rocks which we call sand. It’s plants, fungus and animals that make that into soil. They all work together to digest and excrete what makes up soil. Not to mention that it’s fungi that dissolve minerals to make them bioavailable to everything else. So there’s lots of ways life changed the surface but I don’t know about the base continents