Question

1. match the type of unmanned space vehicle with its description.
2. orbiters
3. landers/rovers
4. artificial satellites
5. space probes

a. an object that humans purposely placed in orbit around a body in space
b. objects that travel to a planet and go into orbit around it
c. mobile vehicles designed to explore the surfaces of other planets
d. unmanned vehicles that take scientific instruments into space to collect data

Explanation:

1. For "orbiters", the description should be about objects that orbit a planet. Option b says "objects that travel to a planet and go into orbit around it", which matches orbiters.
2. "landers/rovers" are mobile on planetary surfaces. Option c is "mobile vehicles designed to explore the surfaces of other planets", so this matches.
3. "artificial satellites" are placed in orbit by humans. Option a is "an object that humans purposely placed in orbit around a body in space", so this is the match.
4. "space probes" carry scientific instruments to space for data collection. Option d is "unmanned vehicles that take scientific instruments into space to collect data", so this matches.

Answer:

1. orbiters - b. objects that travel to a planet and go into orbit around it
2. landers/rovers - c. mobile vehicles designed to explore the surfaces of other planets
3. artificial satellites - a. an object that humans purposely placed in orbit around a body in space
4. space probes - d. unmanned vehicles that take scientific instruments into space to collect data