Soil close to volcano  is fertile...

Yes, they can marry multiple times. But, he should need to take permission from his other wives.

Boot the computer in safe mode.Then, restore the system to earlier time. >> My Computer, right click, Properties>> Select System Protection tab>> System Restore

Decomposition rates depend on the environment. An object that decomposes in a few years in open air may take ages when not exposed to air, buried in landfill. Newspaper normally takes few months to decompose.  But, in the absence of air and buried in landfill, newspaper can survive for years. All the best.