Answer:
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The country's inability to supply enough food or jobs for its rapidly growing population.
In Earth's climate system, positive feedback's tend to amplify changes in the system, and negative feedback's tend to encourage the system against change. Having a positive feedback gives the newest updates and brings the problems on the table, thus changes are always a must when there's proof that suggest there's big problem, but when the feedback is negative, lacking, then there's not pressure for changes, so anyone who has interest in not changing will push for that, thus encouragement of taking no changes. <span />
Volcanic activity, earthquakes along with wind, water and ice erode the land and the landscape dramatically and consistently cause the earth’s surface to be re-shaped and renewed.