Have mountains in geological history ever been substantially higher than Mount Everest?
Peter Nias, Bradford
• Post your answers – and new questions – below or email them to nq@theguardian.com. Please include name, address and phone number.
Have mountains in geological history ever been substantially higher than Mount Everest?
Peter Nias, Bradford
• Post your answers – and new questions – below or email them to nq@theguardian.com. Please include name, address and phone number.