1) Father of agricultural chemistry is___________________? a. Vonliebig b. Neil Brady c. Neuron d. J. jones
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2) Organic soil are called____________________? a. Peat b. Arid soil c. Muck d. Both a & b
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3) Main product of photosynthesis is_____________________? a. C6H12O6 b. C12H24O12 c. C3H6O6 d. C5H12O6
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4) Mechanisms of material uptake by plants is by____________________? a. Diffusion b. Osmosis c. Root interception d. Mass flow
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5) Planets in our system are____________________? a. 8 b. 12 c. 10 d. 9
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6) hydrosphere refers to______________________? a. Zone of water b. Zone of air c. Zone of atmosphere d. Zone of earth crust
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7) The inner shell of earth consists of_____________________? a. Fe b. Silicate c. Mg d. Silicate of Fe & Mg
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8) Fine-graned rocks formed on earth crust are called____________________? a. Intensive igneous rock b. Extrusive rock c. Sedimentary rock d. Plutonic
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9) Which rock contain potash feldspar ? a. Syeruite b. Gabbro c. Norile d. All the above
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10) 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
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11) Rocks formed from compacted clay or mud are called____________________? a. Shale b. Clay stone c. Sand stone d. None of the above
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12) Which rock is harder_________________? a. Metamorphic b. Sedimentary c. Igneous d. Sand stone
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13) Most abundant mineral in the earth crust is______________________? a. N-Feldspar b. Feldspar c. S-Feldspar d. Amplubole
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14) Which compound is mostly used in Pakistan for the reclamation of saline-sodic & sodic soils_________________? a. Apatite b. Calcite c. Dolomite d. Gypsum
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15) Geochemical weathering processes occurs______________________? a. On surface b. Below soil solum c. At the level d. On the mountain
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16) Igneous rock whose crystal is 1 cm called____________________? a. Plutonic b. Felsic c. Pegmatitic d. Mafic
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17) Thick concordant bodies which force the overlying sediments to form dome-shaped hills are called_____________________? a. Laccoliths b. Pegmatic c. Dike d. Batholiths
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18) Places where volcanoes occur are_________________? a. Pacific ocean b. Mid-Atlantic ridge c. Mediterranean sea d. All the above
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19) Large pieces of erupted magma are called_____________________? a. Volcanic ash b. Volcanic block c. Dike d. Sill
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20) Color off basic matic rock is_____________________? a. Light green b. Dark colored c. Yellow d. Blue
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