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Start learning 50% faster. Sign in nowLet the speed of the current be x kmph. According to the question, 9/(9 – x) = 2 ⇒ 18 – 2x = 9 ⇒ 2x = 18 – 9 ⇒ x = 9/2 = 4.5 km/hr
Which of the following is a symptom of protein-energy malnutrition (PEM)?
________carries/carry hereditary material.
Which of the following statements is incorrect about dietary fibres?
What is the primary nitrogenous waste product excreted by humans?
In angiosperms, double fertilization involves:
Monocotyledons and dicotyledons are subdivisions of which plant group?
Alveoli are related to which system of the human body?
Which of the following controls/control the growth of bollworms ?
Which of the following is NOT a symptom of Amoebiasis?