SSC 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