Questions with the keyword 'involved'

• what chemicals do you expect were involved during world wars? i.e would have been used in acidic mixtures, bombs etc. by bryony123456789 to David, Helen, Ian, rhysphillips, Sarah Comments: (No comments so far )
• why do so many planes crash if there ment to have lots of modern technology involved in them ? by thurkettlek and 1 other. to rhysphillips Comments: (so far, 3s comments )