राजस्थान निम्नलिखित में से किस भारतीय राज्य के साथ अपनी सबसे लंबी अंतरराज्जीय सीमा साझा करता है?

Which district of Rajasthan is a leader in citrus fruit production and is known as 'mini-Nagpur' of Rajasthan?

As per the Forest Department Report of Rajasthan, which pair of districts has the lowest total forest cover (in sq. km)?