Are the plants enough?
And if so, why?
Plant ecologist Howard Griffiths answered this blossoming question from listener Sarah
And what are the advantages and disadvantages of using nuclear power?
And how does the pill work? It's over to reproductive physiologist, Bill Colledge...
Where is that energy coming from? Chemistry World's Kit Chapman explains...
Is it as simple as "anything I don't want growing there"?
How come you can't see faint stars when you look directly at them?
What do antidepressants do in the brain?
What's the most powerful acid we've ever found?
What's in the Earth?
How would we do space surgery?
What makes someone schizophrenic?
How do we make new molecules?
How do we know how old the Earth is?
What separates anxiety from a disorder?
What makes a battery go?
How long did it take for the dinosaurs to die?
How do you give CPR without gravity?
Is there a protocol for a space pregnancy?
If eating too many orange carrots can affect your skin colour, can purple carrots?
Why are they so unhappy in monogamous relationships?
Is it better to have a raw apple than a baked apple?
Isn't it just a giant vacuum? Over to physicist Adam Murphy...
Should we be worried about electromagnetic field from phone towers and smart meters?