Final answer:
The correct statement regarding continental landmasses on opposite sides of the Atlantic is that they have different climates. They were once connected as part of Pangea, explaining the similar geological formations, but are no longer identical in size or connected by a land bridge.
Step-by-step explanation:
The question pertains to the characteristics of continental landmasses on opposite sides of the Atlantic Ocean. Among the options presented, the correct statement is that they have different climates. Continental landmasses on either side of the Atlantic, for example Europe and North America, do have differences in geology and climate, but they are not identical in shape and size, nor are they connected by a land bridge anymore.
Europe, in particular, exhibits a variety of landforms, from the Alpine region to the Northern Lowlands, each contributing to the continent's biodiversity. The geological formations on continental landmasses do show similarities that have led scientists to theorize that continents like South America and Africa were once connected, forming part of the supercontinent Pangea. However, they have since drifted apart due to plate tectonics.