What do the underlined words and phrases suggest about LIDAR technology

Compare the excerpt you read from the introduction of great astronomers to the article you read about gis. what differences in purpose and tone do you notice?

"as one of our outstanding historical figures once said, ‘when a great democracy is destroyed, it will not be because of enemies from without but rather because of enemies from within.’" (paragraph 7) how does this quote reveal mccarthy’s point of view and advance the purpose of his speech?

Which of these authors wrote a story that revolved around a captains underwater adventures with his crew and a sub marine long before the submarine was actually invented