Hello the answer of above is given by me and this is my second I'd
I have found the answer of Q 4 and it's given in the attachment
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A prime number is a natural number greater than 1 that can't be the factory of multiplying two smaller natural numbers.
A large city represents an area where people live closer together than they do in the countryside, or in small cities. Hence its population density is greater than the average for cities and rural areas combined.
The population density of Cleveland is greater than that of the state of Ohio.