Scottish independence: Your questions answered 4 July 2013 Last updated at 07:50 Key figures and decision makers in the Scottish independence referendum debate have been answering questions from BBC Scotland website users. Interviewees have included government ministers, the heads of the "yes" and "no" campaigns, academics and business people. The historic referendum will take place on 18 September 2014 when voters will be asked a single question: "Should Scotland be an independent country?" Click on the videos to see how the guests dealt with your questions. Nicola Sturgeon Michael Moore Deputy First Minister Nicola Sturgeon says it could take up to two years to get rid of Trident in the event of Scottish independence. Scottish Secretary Michael Moore says there could be no pre-negotiations about independence ahead of the 2014 referendum. Ross Greer and Michael Low David Davison Activists Ross Greer, from Yes Scotland, and Michael Low, from Better Together, explain why they are passionate about the referendum debate. Pensions expert David Davison says the challenge of Scottish independence is in the transition of schemes from one administration to another. Prof Alex Kemp Alan Cochrane and Andrew Nicoll Professor Alex Kemp, professor of petroleum economics, tells of the mixed views about the Scottish oil industry when it was first established in the 1970s and 80s. Holyrood journalists, Alan Cochrane from the Telegraph, and Andrew Nicoll, from The Sun, give their irreverent take on the Scottish independence referendum campaign so far. John Curtice Liz Cameron The UK's foremost psephologist, Professor John Curtice, says the constitutional debate over the last 25 years in Scotland has been "fascinating." Chief executive of the Scottish Chamber of Commerce, Liz Cameron, says Scottish firms will adapt to whatever circumstances next year's independence referendum brings. Jeremy Purvis Patrick Harvie The leader of the campaign to win new powers for Holyrood, Jeremy Purvis, says he is "enthusiastic" that the pro-union parties were able to agree on which new responsibilities could be devolved. Green MSP Patrick Harvie, a key member of the Yes Scotland campaign for independence, says supporters need to reach out to more people to achieve a "Yes" vote . Blair Jenkins Blair McDougall Chief Executive of the Yes Scotland campaign, Blair Jenkins, says Scotland has nothing to worry about as a small independent country. Head of Better Together, Blair McDougall says an independent Scotland "would clearly" have to apply to join the EU.