Petrology किसका अध्यन कहलाता हैं? Most brilliant gk questions. #shorts

Read the following text and answer the following questions on the basis of the same: Ozone layer depletion: We are all exposed to UV radiation from the sun. The sun is by far the strongest source of ultraviolet radiation. UV radiation spectrum is divided into three regions called UVA, UVB and UVC. As sunlight passes through the atmosphere, all UVC and most UVB is absorbed by ozone, water vapour, oxygen and carbon dioxide. UVA is not filtered as significantly by the atmosphere. The three types of UV radiation are classified according to their wavelength. They differ in their biological activity and the extent to which they can penetrate the skin. The shorter the wavelength, the more harmful the UV radiation The UV region covers the wavelength range 100-400 nm and is divided into three bands: • UVA (315-400 nm) • UVB (280-315 nm) • UVC (100-280 nm). Short-wavelength UVC is the most damaging type of UV radiation. However, it is completely filtered by the atmosphere and does not reach the earth's surface UV level reaching the earth changes with latitude and altitude. UV levels are higher closer to the equator. Closer to the equator the sun's rays have a shorter distance to travel through the atmosphere and therefore harmful UV radiation absorption is less. With increasing altitude less atmosphere is available to absorb UV radiation. With every 1000 m in altitude, UV levels increase by approximately 10%. Ozone is a particularly effective absorber of UV radiation. As the ozone layer gets thinner, the protective filter activity is progressively reduced. Consequently, the people and the environment are exposed to higher levels of UV radiation, especially UVB. Ozone depletion is caused by human-made chemicals released into the atmosphere. Most harmful UV radiation band is

Directions (For the items which follow) : In this Section you have Eight short passages. After each passage, you will find several questions based on the passage. First, read a passage, and then answer the questions based on it. You are required to select your answers based on the contents of the passage and opinion of the author only. PASSAGE-VI It was Galileo and Newton-notwithstanding that Newton himself was a deeply religious man who destroyed the old comfortable picture of a friendly universe governed by spiritual values. And this was effected, not by Newton's discovery of the law of gravitation nor by any of Galileo's brilliant investigations, but by the general picture of the world which these men and others of their time made the basis of the science, not only of their own day, but of all succeeding generations down to the present. That is why the century immediately following Newton, the eighteenth century, was notoriously an age of religious skepticism. Skepticism did not have to wait for the discoveries of Darwin and the geologists in the nineteenth century. It flooded the world immediately after the age of the rise of science. 'The old comfortable picture of a friendly universe' was :

Directions (For the items which follow) : In this Section you have Eight short passages. After each passage, you will find several questions based on the passage. First, read a passage, and then answer the questions based on it. You are required to select your answers based on the contents of the passage and opinion of the author only. PASSAGE-VI It was Galileo and Newton-notwithstanding that Newton himself was a deeply religious man who destroyed the old comfortable picture of a friendly universe governed by spiritual values. And this was effected, not by Newton's discovery of the law of gravitation nor by any of Galileo's brilliant investigations, but by the general picture of the world which these men and others of their time made the basis of the science, not only of their own day, but of all succeeding generations down to the present. That is why the century immediately following Newton, the eighteenth century, was notoriously an age of religious skepticism. Skepticism did not have to wait for the discoveries of Darwin and the geologists in the nineteenth century. It flooded the world immediately after the age of the rise of science. Religious skepticism arose because :