Answer:
Overpopulation causes fierce rivalries to control resources. Territorial conflicts over resources are due in many cases to geopolitical tensions and can end in war.
Explanation:
Because. :)
The green revolution is when farmers and scientists developed new methods and techniques to make plants grow faster. They also discovered new strains and compounds to replace plants that take longer to grow, with faster and more effective plants. Because of the green revolution, plants may grow at a faster rate with less water or sunlight given to them. It was the scientific improvement to earths natural way of providing resources.
Civil War > Roaring Twenties > Great Depression > Reconstruction
