It's Q&A time! We've picked a selection of the best science questions from listeners, like: are lottery numbers really random? Is there still a hole in the ozone layer? And crucially - why do some bananas peel into three sections and some into four? Here to answer them is our expert panel: tech journalist Tim Revell, geneticist Hannah Thompson, climate scientist Ella Gilbert, and physicist Jess Wade... Like this podcast? Please help us by supporting the Naked Scientists