Salaam,
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what do you understand by the term NPK fertilizer ?
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N= Nitrogen, P= Phosphorus and K= Kalium = Potassium
Is a process in which the blood is purified by the machine. This process is naturally performed by the kidneys.
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b. Vanadium, a steel gray corrosion resistant metal occur naturally in oxide state :
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True. Vanadium is usually added to different metals in order to increase their breaking strength.
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h. The velocity of a moving object is least where the pressure is greatest
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False. It depends on the direction of the pressure applied, if it is against the direction of motion of the object, only then the above statement becomes true, but in general, its not acceptable.
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b. Night Vision Technology
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It is the technology which uses the infra-red and ultraviolet light rays to see in the dark, without illuminating the area with usually visible light. So, it remains apparently dark, while the eyes of technology makes it visible only to those who use it.
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2. the most abundant element in the human body is :
a. Carbon b. Hydrogen c. Oxygen d. Nitrogen
C
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Well, i personally think that it is Hydrogen