Soil Science MCQ – 17

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Q.1: For Beidellite and Nontronite isomorphous substitution occur in?

1. Octahedra
2. Tetrahedra
3. Both A and B
4. None of the above

Q.2: Ammonium Sulfate is?

1. Single
2. Complex
3. Mixed
4. All of the above

Q.3: Average density (Mg/m3) of earth crust is?

1. 2.6-3.0
2. 2.8-3.5
3. 3.0-4.5
4. 9.0-12

Q.4: Limonite is the source of?

1. N
2. P
3. K
4. Fe

Q.5: Differentiation between coniferous and desiduous plants are done by using which band of wave length in remote sensing?

1. Visible band
2. Microwave band
3. Infrared band
4. Near infrared band

Q.6: Father of Soil Taxonomy is?

1. Dokuchaiev
2. G.D. Smith
3. Kellogg
4. USDA soil survey staffs

Q.7: With increasing water content, Thermal Conductivity of soil?

1. Increases
2. Decreases
3. Varies
4. no such relation exists

Q.8: In ‘Water drop method’ the diameter of water drop should be?

1. 4.5 mm
2. 30 mm
3. 30 cm
4. 4.7 mm

Q.9: Exfoliation/onion peeling in rocks is due to?

1. Temperature variation
2. Different mineralogical composition of rock
3. Both A and B
4. Presence of water

Q.10: Puddled soil comes under which grade of soil structure?

1. Single grain
2. Massive
3. Structureless
4. All of the above

Soil Science MCQ – 17

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