1)
Here they named the place 'Tav'eirah', whereas later, in Pasuk 34, they called it 'Kivros ha'Ta'avah'. Does thi mean that they gave the place two names?
1.
Ramban: Yes, it does! Following the previous episode (of the fire), still in the same place, developed a desire for meat, which resulted in the plague, on account of which they re-named the place 'Kivros ha'Ta'avah'.