Which of the following describes fossil fuels? a) stored solar energy b) stored water energy c) locked up energy found in igneous rock units d) completed biological decomposition of dead organic matter

The answer is D, fossil fuels are sources of energy from dead organic matter that has been formed over a long time. The name "fossil fuels" come from the fact at how old they are.

The answer would be  c) locked up energy found in igneous rock units because fossil fuels are natural feuil 

It’s letter b because the area of the trapezoid is 72

Overwritten or erased text files e-mails because since they are overwritten or erased they do not appear in an exam of the rom. in the rom you can find easily email that is not being erased or rewritten, as they are stored in memory, but if they are erased or overwritten those records cannot be accessed in a second moment.