number 7: Czar Nicholas II was the last czar, and Russia replaced him with a communist government.
number 8: The treaty of Versailles was the treaty that brought world war 1 to an end.
number 9: Woodrow Wilson came up with the idea of the league of Nations, The League's goals included disarmament, preventing war through collective security, settling disputes between countries through negotiation diplomacy and improving global welfare.
D seems the most likely because ammonia is not as natural a substance as the others
Answer:The first step of the problem solving process is to identify and define the problem. The second step, which is to analyze the problem, involves gathering information, sorting through relevant and irrelevant information, and evaluating the source of the problem by asking the Five W's: who, what, where, when, and why. The third step is to generate a broad range of solutions by using the brainstorming process. The fourth step, which is to select and plan the solution, involves evaluating each solution, eliminating all the solutions until one remains, and creating a plan of action for the solution. The fifth step of the problem solving process is to implement the solution. Last but not least, one should evaluate and monitor the solution's progress.
Explanation:
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