Answers to questions about chemistry, matter, gases, fuels, green chemistry, nanotechnology...
Are the plants enough?
Does iron in blood mean it's magnetic? Can magnetic bracelets be used as a therapy, as some people claim?
Which are worse for the environment, volcanic eruptions or plane emissions?
Should you eat apple cores? Are they dangerous, or is throwing them away nothing but a waste of good apple?
What makes the distinctive smell immediately after it's rained?