Answer:
Adding fish to the water sources, changing the drainage of the land to affect the amount of water, destroying habitats.
Explanation:
Adding fish to the water sources: If there is a lack of fish in the water, adding fish can not only mean that more fish can reproduce, but also animals such as kingfishers and bears can get more food.
Changing the drainage of the land to affect the amount of water: If there is a flood, altering the drainage can mean that there can be a lower risk of organisms drowning or increase the chances of habitats being destroyed.
Destroying habitats: Destroying habitats can cut down the number of species in that area, this can be used positively if the animal is a large threat to the ecosystem and can cause the ecosystem to become unbalanced.
