Answer:
Cat.
Explanation:
Introduction of cat can control the population of mice on the island more effectively as compared to the introduction of disease because the introduction of disease can cause damage to other population of that environment that adversely affected the ecosystem. Cat feeds on mice that act as a controlling agent in this ecosystem that will leads to decrease as well as controls the population from increasing in order to cause damage to the environment.
Hi.
In short, I believe the reaction you're looking for is a condensation reaction.
~
Perhaps the most significant factor that affects the biogeochemical cycles in the terms of human involvement is global warming, which disrupts natural cycles on various levels.