Ecofarm: I live on a few acres of treeless, ex-cattle farming land and I intend to plant enough trees to replace the ones that were cut down to build my house. I also want to plant enough trees to compensate for the CO2 created in producing the electricity I use. How many trees growing, say, 15 metres tall, do I need to plant per kilowatt-hour?
Getting it nailed: Why do people bite their nails and what is the compulsion to do this when you are worried or concerned?
Tank madness: Following a recent bereavement we would like to know why fish jump out of small aquariums?
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