Read the following excerpt carefully and answer the questions that follow How artifacts are identified Processing of food required grinding equipment as well as vessels for mixing, blending and cooking. These were made of stone, metal and terracotta. This is an excerpt from one of the earliest reports on excavations at Mohenjodaro, the bestknown Harappan site: Saddle querns … are found in considerable numbers … and they seem to have been the only means in use for grinding cereals. As a rule, they were roughly made of hard, gritty, igneous rock or sandstone and mostly show signs of hard usage. As their bases are usually convex, they must have been . set in the earth or in mud to prevent their rocking. Two main types have been found: those on which another smaller stone was pushed or rolled to and fro, and others with which a second stone was used as a pounder, eventually making a large cavity in the nether stone. Querns of the former type were probably used solely for grain; the second type possibly only for pounding herbs and spices for making curries. In fact, stones of this latter type are dubbed “cuny stones” by our workmen and our cook asked for the loan of one from the museum for use in the kitchen. 1. What are the two types of querns? 2. What materials were used in the making of these querns? 3. Why are they described as ‘curry stones’?