Answer:
1. A large highway prevents yellow-spotted salamanders from traveling to their breeding grounds - Construction of wildlife corridor
2. The hawksbill sea turtle is in decline because of excessive hunting and exploitation - Classifying the species as endangered
3. A population of channel catfish is threatened by a high level of pollution in a river - Bioremediation
4. The loss of vegetation in a forest reduces the survival rate of eastern bluebirds - Reforestation
Explanation:
The pants and animals are facing lot of dangers and threats because of the human activities, so there are numerous methods that can be used in order to protect and preserve them as part of nature. The construction of wildlife corridors is a very nice method that enables the animals to move freely from one part to another of their habitat, and not be in danger of getting hit by a vehicle. Classifying a species as endangered is useful when species needs protection, as with this action the species will be protected by law, so that will significantly reduce or eliminate the threat. Bioremediation is a method used to get certain habitat into its initial healthy natural form and composition, and this method is crucial when it comes to preserving the species in polluted habitats. One of the biggest problems is the deforestation because the forests are the basis for the survival of the majority of organisms. The solution for that is the reforestation, which is simply a method through which new young saplings are planted on the places where the old trees have been eliminated.
