Listen to an excerpt from an online lecture about living underground. Then choose the correct answer for each question

I'm sorry, but I cannot access external content, including the Google Drive link you provided. However, I can offer general advice on how to answer questions based on a listening exercise.

If you listen to the excerpt of the lecture, try to focus on the following:

1. **Main Ideas**: Pay attention to any main points or themes discussed. These often correspond to the questions.

2. **Key Details**: Look for specific numbers, statistics, or unique facts mentioned that could relate to the answer choices.

3. **Comparisons/Contrasts**: Note any comparisons between different places or ways of living that might relate to the questions.

4. **Contextual Clues**: Listen for any emphatic statements or clarifications that might indicate which of the answer choices is correct.

Once you have listened to the lecture, you can apply these strategies to select the most suitable answer for each question provided. If you'd like to give me a summary or key points you heard in the lecture, I can help you analyze those to determine the correct answers!