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Isaacr

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denise
Why is there salt in the sea?
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jimsteel
What is a two pipe system?
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morene
How to deter mosquitoes from ponds
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sabrinah
Both diamonds and graphite are made of carbon, yet one is the hardest known substance and teh other you can break with your fingers, why?
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sloth
Do fish sleep?
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sabrinah
What special adaptations do giraffe's necks have to keep them upright?
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edbenjohn
What is the noise a kettle makes as soon as you turn it? It's obviously not the noise of the water boiling, coz it's not boiled!
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paulmac
how does central heating work
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paulmac
How does central heating work?
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anni.g
Why is there such a disparity in the way hair grows on the human head compared to the rest of the body? Apart from our scalps from where hair can grow down to the waist or longer, if left uncut, we...
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sabrinah
How does tickling work? How come some people are ticklish and others arne't? If you are ticklish, why does it only work when someone else does it?
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Heywood
What is the fuel oil ratio for a McCullock PS 370 two strock chainsaw. Is there a web site for McCullock - have tried www.mccullock.com this is not it
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allen ives
Nearly all high-flying planes leave contrails. However, I often see small planes, apparently jets, flying at similar high altitudes, which leave no trail. How is this possible?
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Isaacr
What's the difference between hair and fur
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alban bower
tell me about bluetit nesting
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Oliverg2
I'm off diving for a couple of weeks and was curious to know how the whole breathing apparatus works.
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Henryn
If the universe is continually expanding, what is expanding into?
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shine
Water being heavier than air, and clouds being cold, so not warm enough to be lighter than air......what are they doing up there? Why aren't they down here? I don't get it.
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riley
How does aspirin work to relieve pain?
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apm82
how does a cable modem work

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