Final answer:
While the continents were once part of a single supercontinent called Pangea, they are not currently physically connected due to the movement of Earth's tectonic plates. Some regions were temporarily connected during the Ice Ages due to lower sea levels. Therefore, not all land masses are directly connected.
Step-by-step explanation:
No, not all land masses are directly connected with one another. Earth is divided into seven continents - Africa, Antarctica, Asia, Australia, Europe, North America, and South America - that are separated by large bodies of water. However, there is historical evidence that suggests these continents were once a single landmass known as Pangea. This supercontinent began to split apart around 175 million years ago due to the movement of Earth's tectonic plates.
Additionally, during the Ice Ages, when sea levels were significantly lower due to the large amounts of water frozen in glaciers, some areas that are now separated by water were connected by land bridges. For instance, Papua New Guinea was connected to Australia, and many islands of Southeast Asia were connected to the mainland. However, these connections are temporary and depend on global conditions.
Thus, while all continents can be said to have once been parts of a single supercontinent, they are not currently physically connected.
Learn more about Pangea and land connections