Everyday Science

Everyday Science subject is comprise of Biology, Chemistry, Physics, Environmental Science, Geography and Engineering Subjects. This section also carries MCQs about how and why, science shapes our daily lives. Everyday Science or EDS is one of the compulsory subjects in CSS. It is also part of most of general tests conducted by different testing services and government departments, schools or colleges.

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    Everyday Science
    Which one of the following physical quantities of an object is specified by its speed and direction?
    (a) Displacement is a vector quantity, whereas distance is a scalar quantity. (b) The physical quantity that includes both the speed and direction of the motion of a body is called its velocity
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    Everyday Science
    Which of the following would be measured by seismograph?
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    Everyday Science
    Which of the following is used as a moderator in nuclear reactor?
    A moderator is a material used in a nuclear reactor to slow down the neutrons produced from fission. By slowing the neutrons down the probability of a neutron interacting with Uranium-235 nuclei is greatly increased thereby maintaining the chain reaction. Heavy water (D2O) is used as a moderator in nuclear reactor. It containing significantly more than the natural proportions (one in 6,500) of heavy hydrogen (deuterium, D) atoms to ordinary hydrogen atoms. Heavy water is used as a moderator in some reactors because it slows down neutrons effectively and also has a low probability of absorption of neutrons.
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    Biology
    Which of the following group of animals get nutrition by feeding on both plants and animals?
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    Everyday Science
    Who proposed an atom model with discrete orbits called energy levels?
    Bohr Atomic Model. Bohr Atomic Model : In 1913 Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus.
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    Everyday Science
    Fathom is the unit of:
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    Chemistry
    Vinegar contains which acid?
    Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume.
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    Everyday Science
    A light ray will retrace its path after reflection for a spherical mirror when it passes through
    If a ray is incident normally on a point on the spherical reflecting surface, the angle of incidence, i=0. So, the angle of refraction, r=0. Therefore, the ray retraces its own path after reflection. And such a ray travels through the centre of curvature of the mirror.
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    Everyday Science
    Sebaceous glands are present in which organ?
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    Everyday Science
    In a biotic community, the primary consumers are
    In a biotic community, the primary consumers or first-order consumers are herbivores, they feed on producers. They are also called key industry animals because they convert plant material into animal material, e.g. rat, deer, rabbit, cattle, goat, sheep, insects etc.
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