Hamad Soil Science 15/05/2021 A. Metamorphic B. Sedimentary C. Igneous D. Sand stone Related Mcqs: The site of grains present in sands structuring range__________________?A. 1.00 0.0625 mm dia B. 0.0625 mm dia C. 0-1.0 mm dia D. None of the above... The available form of calcium to plant is________________?A. Ca(free cation B. CaO C. Ca D. None of the above... A compound toxic to crop formed by the thermal decomposition of urea is_________________?A. Uric acid B. Biurct (NH2CONH CONH2 H2O) C. Diuret D. Both b & c... Extraction of humic substance can be done by______________________?A. NaOH B. NH4Cl C. NH4OH D. None of the above... Humic acid is soluble in____________________?A. Acid B. Alkali C. Both a & b D. None of the above...
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