Wel, do, dywedodd Llywodraeth y DU wrthym na fyddem yn colli ceiniog pe byddem yn gadael yr UE, felly rydym yn eu dal at eu gair. Ond credaf eich bod yn gwneud pwynt pwysig: nid yw pob rhywogaeth estron yn fygythiad i'n hiechyd, ein heconomi a'n hamgylchedd a chredaf ei bod yn bwysig iawn inni ganolbwyntio ar y rhywogaethau estron goresgynnol oherwydd, fel y dywedwch, ceir meysydd eraill sydd eu hangen arnom i hyrwyddo bioamrywiaeth.

Well, yes, the UK Government told us we wouldn't lose a penny if we left the EU, so we're holding them to that. But I think you make an important point: not all non-native species do pose a threat to our health, economy and environment, and I think it is really important that we focus our action on the invasive non-native species because, as you say, there are other areas that we need to promote biodiversity.

A wnewch chi dderbyn ymyriad? Onid ydych yn cydnabod bod 95 y cant o'r holl ddur a ddefnyddir ar reilffyrdd Prydain yn ddur Prydain a bod Chris Grayling wedi rhoi ymrwymiad i Dŷ'r Cyffredin ei fod am weld dur Prydain yn cael ei ddefnyddio ar HS2 ond bod yna weithdrefnau caffael sy'n rhaid gweithio drwyddynt?

Will you take an intervention? Do you not recognise that 95 per cent of all steel used on British railways is British steel and Chris Grayling has given a commitment to the House of Commons that he wants to see British steel used in HS2 but there are procurement procedures that have to be gone through?

Wel, credaf ei bod yn bwysig iawn tanlinellu nad ydym mewn unrhyw ffordd yn ymbellhau oddi wrth ddenu mewnfuddsoddiad i Gymru, ond mae'n eithaf amlwg ar adeg fel hon o fflwcs economaidd, lle nad ydym yn gwybod beth fydd ein perthynas â'n partner economaidd agosaf, ei bod yn gwneud synnwyr inni ganolbwyntio ar allforion, fel yn wir y mae'r Swyddfa Dramor a Chymanwlad a'r Adran Masnach Ryngwladol wedi'i wneud. Ac felly, yr hyn a wnaethom, rydym yn falch iawn ein bod wedi derbyn cyllid ychwanegol o'r cyllid sydd wedi dod o ganlyniad i Brexit i helpu i annog mwy o allforwyr o Gymru, gan dargedu busnesau bach a chanolig eu maint yn arbennig, ac rydym wedi bod yn gwneud cryn dipyn o gynnydd ar hynny ac rydym wrth ein boddau gyda'r ymateb cadarnhaol iawn a gafwyd.

Well, I think it's really important to underline that in no way are we moving away from encouraging investment into Wales, but it's pretty clear at a time of this kind of economic flux, where we don't know what our relationship will be with our nearest economic partner, that it makes sense for us to focus on exports, as indeed the Foreign and Commonwealth Office has done and the Department for International Trade has done. And therefore, what we've done, we've been very pleased to have received additional funding from the funding that has come as a result of Brexit to help to encourage more exporters from within Wales, particularly targeting small and medium-sized enterprises, and we've been making considerable progress on that and we're delighted that there has been a very positive response.

Nid oes gennym ni unrhyw gynlluniau i newid y polisi. Mae polisïau yn cael eu hadolygu drwy'r amser, wrth gwrs, ac rydym yn cydnabod pa mor bwysig yw hi bod plant yn gallu cael mynediad at gyfleusterau er mwyn bod yn egnïol fel eu bod yn parhau i fod yn egnïol am weddill eu bywydau.

We have no plans to change the policy. Policies are always under review, of course, and we recognise how important it is that children are able to access facilities in order to be active in order that they remain active for the rest of their lives.