Answer:
Most of the Czar didn't treat Russians or Russia in general with respect. The government wasn't doing its job to help the citizens of Russia in other words the Czar wasn't meeting the average quota in terms of responsibility to the people of that country. Which resulted in the whole of Russia disliking Czar and the way they led since they did not care about the hardships that Russian people were facing.
<span>The main impact of the completion of the Panama Canal was to increased world trade.</span>
In an explanatory essay, or any essay, the introductory paragraph introduces (hence it's name) the main idea, or what you are going to explain. The body paragraphs go into extreme detail of what the introductory paragraphs mentioned.