Question: The site of grains present in sands structuring range__________________?

• 1. 1.00 0.0625 mm dia
• 2. 0.0625 mm dia
• 3. 0-1.0 mm dia
• 4. None of the above

Question: Which rock contain potash feldspar ?

• 1. Syeruite
• 2. Gabbro
• 3. Norile
• 4. All the above

Question: Fine-graned rocks formed on earth crust are called____________________?

• 1. Intensive igneous rock
• 2. Extrusive rock
• 3. Sedimentary rock
• 4. Plutonic

Question: The inner shell of earth consists of_____________________?

• 1. Fe
• 2. Silicate
• 3. Mg
• 4. Silicate of Fe & Mg

Question: hydrosphere refers to______________________?

• 1. Zone of water
• 2. Zone of air
• 3. Zone of atmosphere
• 4. Zone of earth crust

Question: Planets in our system are____________________?

• 1. 8
• 2. 12
• 3. 10
• 4. 9

Question: Mechanisms of material uptake by plants is by____________________?

• 1. Diffusion
• 2. Osmosis
• 3. Root interception
• 4. Mass flow

Question: Main product of photosynthesis is_____________________?

• 1. C6H12O6
• 2. C12H24O12
• 3. C3H6O6
• 4. C5H12O6

Question: Organic soil are called____________________?

• 1. Peat
• 2. Arid soil
• 3. Muck
• 4. Both a & b

Question: Father of agricultural chemistry is___________________?

• 1. Vonliebig
• 2. Neil Brady
• 3. Neuron
• 4. J. jones