Land Riddles

Never Has to Steer
Riddle:
What moves across the land but never has to steer? It has delivered our goods year after year. What is it?
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Between Sea and Sky
Riddle:
I am always there, some distance away, somewhere between land or sea and sky I fly, you may move towards me, yet distant I shall stay.
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Breaks on Water
Riddle:
What breaks on water but never on land?
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