Quizzes & Puzzles2 mins ago
april quizmail
2 Answers
I have an answer for the calorific value of coal Q, but no proof.
Any suggestions of where to look for a definitive answer much appreciated.
Sorry can't be more specific re Q, but quizsheet not available right this minute.
Any suggestions of where to look for a definitive answer much appreciated.
Sorry can't be more specific re Q, but quizsheet not available right this minute.
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