Hamad Soil Science 29/01/2024 A. Primary hydration B. ppm C. Normality D. Residence time Related Mcqs: Which element can be fixed by smecitite___________________?A. Mgº B. Kº C. NH2 D. Both b & c... Tuff is__________________?A. Soil B. Water C. Volcanic ash D. Consolidated ash... Most of the productive soils in Pakistan have pH______________________?A. Between 7.5 to 8.5 B. 8.5 D. None of the above... The formula used for calculating RSC is _____________________?A. RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2) B. RSC=(CO32 + HCO2) ( Ca2 + Mg2) C. None of the above D. non of these... Perfect hardness of any mineral is determined by___________________?A. Mho’s scale B. pH scale C. Foot scale D. None of the above...
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