2. Introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.

Challenge : Competition form other species.

Success :  Adaptation and colonisation.

Explanation:

Challenges like adapting to the new environment and different climatic zones and handle other potential threats like predators as snakes, birds, and others. Their potential to find food and sustain themselves will be a challenge. Success factors include their ability to adapt and develop a sense of the different environment and through genetic mutation and natural selection they can develop and grow in numbers.

The one that would be the most effective means of controlling current water pollution of us surface water is : shutting down factories that discharge materials to the rivers.the largest sum of us pollution currently caused by factory-related substance