Which stone will form longer tor or limestone?

Answer 1

A tor is a type of rock outcrop formed by weathering, usually found on or near the summit of a hill. In the South West of England, where the term originated, it is also a word used for the hills themselves - particularly the high points of Dartmoor in DevonBodmin Moor in Cornwall. The word 'tor' is also used in southern Wales, particularly on the rocky Coastlines such as the Vale of Glamorgan and the Gower Peninsula; on the Gower one of the sandy beaches near Oxwich Bay is called "Tor Bay" because the beach is framed by a huge outcrop of carboniferous limestone.

Limestone is a sedimentary rock composed largely of the mineral calcite (calcium carbonate: CaCO3).

Thus you are comparing a land formation (what the land looks like) with a rock type that may be part of that land formation. This means that as you have worded ,your question can not be properly answered. However, I hope the definitions given above are of some help to you.