Question

read the text. orbital debris is a fancy name for the junk that orbits earth. abandoned launch vehicles are examples of orbital debris. this space junk can collide with spacecraft and poses particular risks to the international space station (iss). as a result, nasa tracks space junk as it orbits earth. to protect against pieces of debris that are smaller than a half inch, the iss has debris shields. for larger pieces of debris, however, nasa follows a set of guidelines. sometimes astronauts are aware of the debris in advance. when this is the case, nasa may avoid collisions by slightly moving the iss. other times, large debris makes a surprise approach. in this case, the iss crew may respond by moving into the soyuz spacecraft, which serves as a lifeboat in case of emergency. match the problems with their solutions. the iss changes location. the iss crew enters the soyuz. shields offer protection.

Explanation:

To solve the matching, we analyze the text:

1. For "debris smaller than a half inch", the solution is "Shields offer protection" (from "To protect against pieces of debris that are smaller than a half inch, the ISS has debris shields").
2. For "debris known in advance", the solution is "The ISS changes location" (from "When this is the case, NASA may avoid collisions by slightly moving the ISS").
3. For "large debris with surprise approach", the solution is "The ISS crew enters the Soyuz" (from "Other times, large debris makes a surprise approach. In this case, the ISS crew may respond by moving into the Soyuz spacecraft").

Answer:

• Problem: Debris smaller than a half inch → Solution: Shields offer protection.
• Problem: Debris known in advance → Solution: The ISS changes location.
• Problem: Large debris with surprise approach → Solution: The ISS crew enters the Soyuz.