<|im_start|>user
how does the water cycle work?<|im_end|>
<|im_start|>assistant
The water cycle has no starting point, but the oceans seem to be a good starting point. The sun warms the water in the oceans; it evaporates into the air. Rising air currents carry the vapour into the atmosphere, where the lower temperatures cause the vapour to condense into clouds.<|im_end|>
