WWI was started because a Serbian nationalist assassinated archduke Francis Ferdinand and acting like a friend who is in a fight Germany jumped in and held Serbia responsible for the assassination starting WWI. The effect s it had on European countries were the collapse of their economies and wanting Germany to pay war reparations mostly to Britain and France totaling to 33 billion dollars this is when the Great Depression started after the stock market crash and the failure of banks.
Answer:
• Temperatures are rising world-wide due to greenhouse gases trapping more heat in the atmosphere.
• Droughts are becoming longer and more extreme around the world.
• Tropical storms becoming more severe due to warmer ocean water temperatures.
• As temperatures rise there is less snowpack in mountain ranges and polar areas and the snow melts faster.
• Overall, glaciers are melting at a faster rate.
• Sea ice in the Arctic Ocean around the North Pole is melting faster with the warmer temperatures.
• Permafrost is melting, releasing methane, a powerful greenhouse gas, into the atmosphere.
• Sea levels are rising, threatening coastal communities and estuarine ecosystems.
Explanation:
It was important because it made you learn about how things change in History.