He was struggling with a very large conger, and holding fast with one hand to the side of the vessel, in order to seize with the other the gaping jowl of his antagonist, when the master said to him, Take care they don't see you from Belle-Isle.
In Naruto each base-element is stronger and weaker than one element:-. Fire: strong against Wind, weak against Water. Wind: strong against Lightning, weak against Fire. Lightning: strong against Earth, weak against Wind. Earth: strong against Water, weak against Lightning.
The various elements also determines success or failure in battle. Dual element monsters typically have the combined weaknesses and resistances of both elements. But if (such as fire/nature) a monster would be weak to an element(in this case fire) AND resistant, the resistance overrides the weakness. Thus a fire/nature monster has only one weakness. This chart shows the results of using an attack in battle.