Trees help purify our air. When the air is to contaminated trees take in all that contamination so we can breathe better.
The answer is B because what they were talking about in the story
<span>B. Motivate people to participate in the fight against injustice
After the Holocaust, Elie Wiesel fought to keep the memories of what happened to the Jewish people and others persecuted by the Nazis heard by all. He frequently argued that his experience made him want to stand up and speak out for all those that have suffered injustice. By speaking out and doing something to keep these atrocities from happening, he believed that a horrible event like the Holocaust would never happen again. All it takes is someone to speak up to stop injustice from happening.
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The component of an effective supporting paragraph of a research report is the summary. A research report is often used in studies that demand highly factual evidences or proof. The aim of research reports is to clearly and concisely discuss your topic. Therefore, in order to make it easier for the readers to understand, a summary should be included.