Final answer:
The Goode-Homolosine projection interrupts the oceans making it difficult to track continuous journeys, and it stretches landmasses near the interruptions, which can distort the perception of their actual size.
Step-by-step explanation:
The Goode-Homolosine projection is a type of map projection used for representing the Earth's surface for educational and thematic maps. However, it has a couple of disadvantages that can impact its usefulness. First, this projection interrupts the oceans, which can make it difficult to trace long oceanic or air routes seamlessly. Additionally, because it portrays the continents in a more 'stretched' manner, particularly towards the poles, the Goode-Homolosine projection is not always useful for navigational purposes where precise distances are needed.
Another disadvantage is the visual distortion of landmasses near the interruptions, which can create a misconception about the actual size and shape of those areas. This could be problematic in accurately comparing the size of different regions, especially when they are near the edges of the projection's lobes.