Answer:
Most erosion – the breakdown and movement of soil and rock – in the world is caused by wind, water and gravity. The effect of soil erosion on agricultural land is bidirectional: Humans can be a cause by exposing soil to natural forces, but wind and water can independently cause erosion.
Explanation:
<span>Removing ground water in Mexico City is a problem because it causes A. land to sink.</span>
Answer:
Usually famine causes angst between the weakened civilation so the owners of said territories usually hunt for more fertile land so they can sustain their growing population without having being thrown out of power and slain, its often better to satisfy the people who you govern rather than to exterminate to govern the population steadily.
and to own more land is more money and more power for such rulers, if they own more land they can tax more people, and if they own fertile land they can grow crops to sustain themselves, and the people they govern, satisfying the ruler AND the people.