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Land law is a fascinating and challenging subject for land is vital for human life

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1.Land law is a fascinating and challenging subject for "land is vital for human life",isnt it?2.Is Land law  a fascinating and challenging subject for "land is vital for human life"?3.Is Land law  or property law is a fascinating and challenging subject for "land is vital for human life"?4.What is a fascinating and challenging subject for "land is vital for human life"?5.What is Land law a fascinating and challenging subject for?