in what two ways does tom act maturely and responsibly during his and becky's crisis in the cave?

Tom occasionally blows out Becky's candle to conserve the wick. Tom explores side passages ­and he has Becky rests ­using kite string as his guide. Tom continues to search the passageways with the kite string, putting his fear of starvation above his fear of Injun Joe and his hunger.