Are the plants enough?
Answers to Science Questions
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07 April 2020
27 February 2011
Does a healed fracture result in a stronger bone?
27 February 2011
What causes muscle cramps, and are there any cures?
25 February 2011
And what's Stephen Hawking's explanation?
25 February 2011
20 February 2011
How fast do I have to go to be lifted off the ground?