Para-jumble (food shortage causes): Reorder the sentences to argue that population explosion is the chief cause and why it overwhelms food supply. S1 = "What are the causes of our chronic food shortage?" S6 = "This unprecedented growth can drag us to the doors of starvation very soon." Between S1 and S6, place the points in a tightening causal chain: P = "To find for these growing new millions is a desperate task." Q = "Every year, we add more than a crore of persons to our population." R = "Despite stupendous efforts by our government, the population is growing unabated." S = "The chief cause is the population explosion." Choose the correct sequence of P–Q–R–S that completes the paragraph.