The energy before and after a process must be the same.
Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth's surface.
This might be wrong but I think it’s B
Tbh, there is no good management. Yes, leaving the environment alone is good, but how will we as people advance? Duplication-can cause both good and bad effects so I don’t really know how to answer your question. Hope this somewhat helped?