Carefully read the passage given below and provide the answers to the 4 questions based on the passage.
The assault on the purity of the environment is the price that we pay for many of the benefits of modern technology. For the advantage of automotive transportation we pay a price in smog- induced diseases; for the powerful effects of new insecticides, we pay a price in dwindling wildlife and disturbances in the relation of living things and their surroundings; for nuclear power, we risk the biological hazards of radiation. By increasing agricultural production with fertilizers, we worsen water population. The highly developed nations of the world are not only the immediate beneficiaries of the good that technology can do; they are also the first victims of environmental diseases that technology breeds. In the past, the environmental effects which accompanied technological progress were restricted to a small and relatively short time. The new hazards are neither local nor brief. Air pollution covers vast areas of continents and radioactive fallout from the nuclear explosion is worldwide. Radioactive pollutants now found on the earth surface will be for generations, and in the case of Carbon-14, for thousands of years.