All of Inala's Biome Bombs were capable of sentient function as long as they had his Prana. Therefore, the Biome Bomb he sent hurling towards Resha would be able to gather Prana and Lifeforce to either transfer them to Resha or birth an army of Zingers.
With close to 1000 units of his Prana, the Biome Bomb should be able to keep functioning for at least a few months. But, if there was a pressing situation where the Biome Bomb would have to actively use its abilities, it would be expending his Prana faster.
And once all his Prana is used up, it would lose its sentient capabilities. This was something he derived from the Satellites and Comets of Enrinos and Enrans, which was helpful. Thanks to it, even though Inala couldn't personally chase after the Boar King, the Biome Bomb would represent him to take care of the situation.