The social groups that he mentions are Hindus and Muslims. Yes, these groups were easily identifiable by their dressing, tradition, culture, etc. For instance, Kalam used to wear a cap on his head which identified him as a Muslim. Ramanadha Sastry wore a sacred thread.
In Fig. 9.26, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC.
Look up the dictionary entries for the words sympathy, familiarity, comfort, care, and surprise. Use the information given in the dictionary and complete the table.
Noun, Adjective, Adverb, Verb, Meaning:
sympathy
familiarity
comfort
care
surprise