Final answer:
Resources become unsustainable due to over-harvesting, excessive consumption linked to human population growth, habitat destruction, and the use of fossil fuels. Unsustainable practices can lead to the exhaustion of natural resources, making it essential to manage and use resources responsibly to prevent depletion.
Step-by-step explanation:
Resources become unsustainable when they are used at rates that exceed their natural replenishment.
Examples of unsustainable practices include over-harvesting, such as over-fishing or the intensive use of soil for farming beyond its capacity to regenerate.
Furthermore, human population growth often leads to increased consumption and resource use, contributing to habitat destruction, and the unsustainable extraction of wildlife.
Other unsustainable practices include the excessive use of fossil fuels, which not only deplete this non-renewable resource but also contribute to climate change and the degradation of ecosystems necessary for the survival of many species.
The concept of unsustainability is particularly evident in the depletion of natural resources like forests, fisheries, fresh water, or species populations. If these resources continue to decline annually, they will eventually be exhausted, posing a threat to human survival.
Therefore, to ensure the longevity of these resources, it is imperative to manage and utilize them in ways that allow for their natural regeneration and prevent long-term depletion.