Question

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

a. lunal
b. mars pathfinder
c. mars express
d. international space station

Explanation:

To solve this matching problem, we analyze each type of unmanned space vehicle and its corresponding example:

1. Orbiters

Orbiters are spacecraft that orbit a celestial body. Mars Express is an orbiter that orbits Mars. So, 1 (orbiters) matches with c (Mars Express).

2. Space Probes

Space probes are unmanned spacecraft sent to explore space. Luna 1 is a space probe (the first lunar probe). So, 2 (space probes) matches with a (Luna 1).

3. Landers/Rovers

Landers/rovers are designed to land on a celestial body and (for rovers) move across its surface. Mars Pathfinder included a lander and the rover Sojourner. So, 3 (landers/rovers) matches with b (Mars Pathfinder).

4. Artificial Satellites

Artificial satellites orbit Earth (or other bodies) for various purposes. The International Space Station (ISS) is a habitable artificial satellite (though manned, it is a type of artificial satellite; note: some sources classify ISS as a space station, but in the context of this problem, it is matched here). So, 4 (artificial satellites) matches with d (International Space Station).

Answer:

1. $\boldsymbol{\text{orbiters}}$ - c. Mars Express
2. $\boldsymbol{\text{space probes}}$ - a. Luna 1
3. $\boldsymbol{\text{landers/rovers}}$ - b. Mars Pathfinder
4. $\boldsymbol{\text{artificial satellites}}$ - d. International Space Station