ZT-Colonizing the moon

1. What is the main purpose of the lecture?

  • A. To discuss a challenge that must be overcome before people can live on the Moon 
  • B. To explain some advantages and disadvantages of building a colony on the Moon 
  • C. To question the reliability of some of the experiments conducted on lunar soil 
  • D. To describe the discovery of an atmosphere on the Moon 

2. Why does the professor mention oxide compounds in the regolith?

  • A. To point out that multiple techniques might be required to extract oxygen from the various compounds
  • B. To propose that the trace amounts of oxygen in the Moon’s atmosphere escaped from the regolith 
  • C. To emphasize that the regolith is gray because of its high aluminum oxide content
  • D. To point out that lunar soil contains large quantities of oxygen 

3. What points does the professor emphasize about soil samples collected during the Apollo space missions?

  • A. They are less abrasive than simulated lunar soil. 
  • B. Some of their properties may have changed.
  • C. Each sample was taken from a different layer of the regolith. 
  • D. There are very few of them left for research. 

4. What point does the professor make when he discusses the formation of lunar soil?

  • A. The formation process can be replicated using vacuum pyrolysis.
  • B. The number of complex compounds in lunar soil is lower than scientists expected. 
  • C. Lunar soil is a product of repeated exposure to violent forces.
  • D. Lunar soil is comprised primarily of iron compounds. 

5. What does the professor imply when he mentions that lunar soil is electrically charged?

  • A. Lunar soil might interfere with the operation of equipment on the Moon.
  • B. Lunar soil could be used as a power source on the Moon.
  • C. Electrical charges on the Moon are less powerful than those on Earth. 
  • D. Extracting oxygen from lunar soil might be easier than previously thought. 

6. Listen to part of the lecture, then answer the question:

Why does the professor say this: 🎧

  • A. To suggest that the answer to his question is obvious
  • B. To suggest that it is not necessary to collect more lunar soil samples
  • C. To introduce an explanation that might be unexpected
  • D. To ask the students to recall what they have learned so far 



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