1Why does the entrance form a short passage? 2How did being low in the ground protect the house? 3How could a dry-stone wall keep out draughts? 4Why was the hearth in the centre? 5What was the stone dresser used for? 6How did stone beds become comfortable? 7How was grain ground? 8How could fish be preserved? 9What could people weave from plant fibres? 10Why is rubbish so useful to archaeologists? 11What might the roof have been made from? 12How did people use both land and sea?