NURSING EXAM QUESTIONS
PHARMACOGNOSY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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0.002-0.02 mm
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0.02-2 mm
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0.03-0.05
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0.2-0.5
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Detailed explanation-1: -The texture of soil is determined by the proportions of particles of different sizes. Coarse sand particles are of 0.2 to 2.00 mm in size; 0.02 to 0.2 mm particles constitute fine sand; 0.002 to 0.02 particles represent silt and particles smaller than 0.002 mm are called clay.
Detailed explanation-2: -Starting with the finest, clay particles are smaller than 0.002 mm in diameter. Some clay particles are so small that ordinary microscopes do not show them. Silt particles are from 0.002 to 0.05 mm in diameter. Sand ranges from 0.05 to 2.0 mm.
Detailed explanation-3: -Particles smaller than 2 mm in diameter are divided into three broad categories based on size. Particles of 2 to 0.05 mm diameter are called sand; those of 0.05 to 0.002 mm diameter are silt; and the <0.002 mm particles are clay.
Detailed explanation-4: -Explanation: The Size of clay particles is less than 0.002 mm.