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Kerala PSC General Awareness Book Study Materials 1 Page 82
Book's First PageSSC CGL GENERAL AWARENESS Pointers l As per the results of the 2011 Population Cen- Success Tip sus, Kerala, Lakshadweep and Mizoram occ- It is an oxide of nitrogen. At room temperature, it is upies the three top places in respect of literacy a colourless, odourless non-flammable gas, with a l Haryana has the lowest child sex ratio as per slightly sweet taste. It is used in surgery and the 2011 Census dentistry for its anaesthetic and analgesic effects Physics l The difference between isotopes of an element is due to the presence of a different number of neu- l Mercury is generally used in thermometers be- trons cause it has a high conductivity l The increasing abundance of greenhouse gases Success Tip in the atmosphere has led to Global warming, Most metals are good conductors of heat and they Depletion of ozone layer in the stratosphere are solids at room temperature. Mercury is the only and Carbon dioxide fertilisation effect one in liquid state at room temperature. It’s used in l Hydrogen fuels causes minimum environmen- thermometers because it has high coefficient of ex- tal pollution pansion. Hence, the slightest change in tempera- l Minamata epidemic that caused several deaths ture is notable when it’s used in a thermometer. in Japan in 1965 occurred due to pollution in l To an observer on the lunar surface, during day- water by Mercury time, the sky will appear to be Black l Ozone affects human health by causing severe l Mass is the measure of ‘inertia’ pulmonary edema at a concentration of 9.0 ppm l The intensity of a wave follows inverse square Biology law and is proportional to the square of the l Lumbering is an act of man that disturbs the amplitude ecological balance Success Tip l Bryophyta is called the amphibian in plant king- An inverse-square law is any physical law stating dom that a specified physical quantity or intensity Success Tip is inversely proportional to the square of Bryophyte is a traditional name used to refer to all the distance from the source of that physical quan- embryophytes that are non-vascular plants, namely tity the mosses, hornworts, and liverworts l Full duplex data communication method is used l Among Hookworm, Guinea worm, Tapeworm and for sending data in both directions at the same Ringworm, odd one is Ringworm time Success Tip Success Tip Ringworm is a fungal infection of the skin Full duplex data communication method Refers to l National Institute of Nutrition is a research in- the transmission of data in two directions simulta- stitute located in the State of Andhra Pradesh neously. For example, a telephone is a full- duplex device because both parties can talk at once. Success Tip In contrast, a walkie-talkie is a half-duplex device National Institute of Nutrition is one of the oldest because only one party can transmit at a time. research centres in India, and the largest centre, l Cooking vessels have wooden or Bakelite han- under the Indian Council of Medical Research, lo- dles because wood, and Bakelite are bad con- cated in the vicinity of Osmania University ductors of heat l A tree’s age can be found by counting the num- ber of annual rings Chemistry l The left aortic arch is observed in Mammals l Darkening property of photo chromatic glass is l Tendon connects Muscle to bone due to the presence of silver chloride Miscellaneous Success Tip l ISDN stands for Integrated Services Digital Photochromic glasses are optical glasses that dark- Network en on exposure to specific types of light of sufficient intensity, most commonly ultraviolet (UV) radiation. Success Tip In the absence of activating light the lenses return Integrated Services Digital Network (ISDN) is a set to their clear state of communication standards for simultaneous digi- l Supersonic aircrafts discharge NO2 into the tal transmission of voice, video, data, and other stratosphere network services over the traditional circuits of the public switched telephone network. l Chemical nature of laughing gas is Nitrous ox- ide l The first President to sail in a submarine in In- dia was Dr. A.P.J. Abdul Kalam SGPE-87