Everyday Science
    The loudness of sound is measured in units called
    We measure sound intensity (also referred to as sound power or sound pressure) in units called decibels. Decibels (dB) are named in honor of Alexander Graham Bell, the inventor of both the telephone and the audiometer.
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    IBA Sukkur Prepositions
    The students sat ______ the classroom.
    The correct preposition is “in”, as we refer to something happening inside a place.
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    IBA Sukkur Prepositions
    As responsible citizens, we shouldn’t draw ______ the walls and the roof ______ the park.”
    The correct phrase is: “draw on the walls”, meaning to write or sketch on the surface. “Of the park” shows possession or relation to the park.
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    IBA Sukkur Prepositions
    One of the most remarkable deserts ______ the world is the Sahara Desert.
    The correct preposition is “in” when referring to something located within a place or area.
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    IBA Sukkur Prepositions
    Salar was a kind and helpful boy ______ nature.
    Use “by nature” for inherent characteristics. Use “in nature” for literal references to the natural world.
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    IBA Sukkur Prepositions
    She sat ______ the train.
    The correct preposition is “on” when referring to being aboard a vehicle like a train, bus, or plane.
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    Everyday Science
    The season changes because of ______
    Seasonal changes occur due to Earth’s revolution around the Sun and its axial tilt.
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    Everyday Science
    The duration of a day at the poles is:
    At the poles, a single day lasts approximately 6 months due to Earth’s axial tilt.
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    General Knowledge
    By which name the Pakistan’s province Punjab is called ______
    Punjab is named after the five major rivers that flow through it.
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    General Knowledge
    How many states of America?
    The United States consists of 50 states.
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