In the following passage there are blanks, each of which has been numbered. For each number, choose the word which fits the blank appropriately from the suggestions provided. Find out the appropriate word in each case.      Twenty years (1) now, nearly 60% of the world’s population will live in urban areas. The impact of urbanization might not all be positive on India as urban expansion is happening at a much (2) rate than infrastructure expansion.   Sustainability issues need to be (3) so that economic development is not at the (4) of public…