One of four words is a class to which the other three belong. Identify the class.
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Calculate the time period (in seconds) of a sound wave of wavelength 5m travelling with a speed of 500 m/s.
Which cricketer is not in the list of ICC Cricket Hall of Fame?
What is the valency of magnesium?
___ is known as a disease mostly caused by occupational health hazards.
What are the receptors for detecting taste called?
Which of the following is the main thinking part of the human brain?
A girl child has which of the following combinations of chromosomes in her cells?