Thomas Jefferson's presidency had an enormous affect on America's national identity. One of the biggest contributions made by Jefferson was his focus on limiting the size and scope of the federal government. Minimizing the power of the federal government is one trend that other presidents do follow and continue to follow to this day.
The War of 1812 also shaped America's national identity. This war against the British resulted in the US showing their military strength/determination by holding off the British from taking back control of America. This also was the first military conflict against a country after the creation of the US Constitution. This helps to develop the idea that America will be a country that stands up against nations who they feel are threatening our way of life.
A severe water crisis looms over India. ... A shortage of water will not only deprive millions of their means of earning a living but also it will result in severe foodgrain shortages, which would in turn trigger spikes in food prices, and also deepen India's problems of hunger and malnutrition.
The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. When Russia began to mobilize due to its alliance with Serbia, Germany declared war on Russia.
B the Incas lived in South America