Final answer:
The conveyer belt in the tropics moves water horizontally, while in the Arctic, it moves vertically due to differences in global atmospheric circulation and the impacts of the Earth's rotation.
Step-by-step explanation:
The phrasing of the question seems to have a typographical error, as 'attic' is likely meant to be 'Arctic.' When discussing the conveyer belt movement of water in different regions on Earth, it's essential to understand that there are variations in this movement based on location. In the tropics, the conveyer belt tends to move water horizontally due to the Earth's rotation and the way air circulates around the equator. Conversely, in the polar regions like the Arctic, the movement of water and air tends to be more vertical due to temperature gradients and the Coriolis effect. This pattern is a critical component of global atmospheric circulation, affecting weather and climate.
In the context provided, convection which is a large-scale flow of matter plays a significant role. For example, hot air moves from the tropics towards the poles while cold air moves from the poles back to the tropics, illustrating the nature of the conveyor belt motion in these areas. Thus, the correct answer to the question is: b) The conveyor belt in the tropics moves water horizontally; in the Arctic, it moves vertically.