French language Q&A Forum

Good day
Please see the question below:
La France est dotée d'un territoire aux climats et aux reliefs variés, grâce ________ sa production agricole est très diversifiée.

I wrote "à qui", but it was marked incorrect, saying that "auquel" is the only correct answer. Why is "à qui" unacceptable in this context?

If I fill up a form with my nationality –

Example one: nationalité: autricien

Example two: nationalité: autricienne

I am a male Austrian, but I fill up with the feminine word 'nationalité' that agrees with the feminine adjective 'autricienne' but I don't know which example is correct.

Please tell me which example is appropriate for a male Austrian nationality. Thank you. 

No question here, just: Merci pour vôtre efforts et meilleurs voeux pour un Joyeux Noël et un bon Nouvel An! :)

Does your car work?

Ta voiture est-elle fonctionne? 

Will it be correct?

Please help!

Are these two options interchangeable ??

I was marked wrong for using it in one of your questiona