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Q.1
Apical oxygen means____?
Ionic form
Unshared
Non-polar
None of these
Right Answer
Q.2
Basal oxygen means____?
Shared
Covalent bonding
Transferred
None of these
Right Answer
Q.3
Mineral is _____?
Organic substance
Inorganic substance
Metallic
None of these
Right Answer
Q.4
Process of mixing soil by fauna & Hora ?
Lessivage
Pedoturbation
Leaching
Enrichment
Right Answer
Q.5
Which is physical property of soil?
Hydration
Oxidation
Reduction
None of these
Right Answer
Q.6
Size of the individual soil particles?
Texture
Porosity
Structure
Bulk density
Right Answer
Q.7
Which silica mineral is present in soil in abundant quantity?
Quartz
NaCl
Smectite
Gypsum
Right Answer
Q.8
Attraction b/w similar particles are called.
Adhesion
Vander wall
Cohesion
All of these
Right Answer
Q.9
Permanent charge is due to
Ionic bonding
Covalent bonding
ph change
Isomorphic substitution
Right Answer
Q.10
Size of clay
<0.2 um
>0.2 um
<0.10 um
All of these
Right Answer
Q.11
Which element can be fixed by smecitite
Mg+
NH4
k+
Both b & c
Right Answer
Q.12
Shrinking & swelling is property of
Clay
Iron
Water
Smectite
Right Answer
Q.13
Slipperiness is due to____?
Covalent bond
Vander walls forces
Wire bond
None of these
Right Answer
Q.14
Kaolinite can be identified by
Spectrophotometer
Boiling
X-ray Diffraction
Breaking
Right Answer
Q.15
Who characterized soil formation as set of "4" process
Jinney
Newton
Zikig
Simonson
Right Answer
Q.16
Soil age can be found by.
Watch
Sunlight
Tree ring counts
None of these
Right Answer
Q.17
Catena mean____?
Contiguous soil extending from hill
Slow movement of water
Eruption of volcano
None of these
Right Answer
Q.18
Mollic refers to____?
B Horizon
C Horizon
U Horizon
Surface horizon
Right Answer
Q.19
Allelopathy is____?
Related to plant treatment
It is fungal disease
It is weathering
None of these
Right Answer
Q.20
Deposits in quite water of lake are called____?
Eolian
Wouvial
Alluvial
Lacustrine
Right Answer
Q.21
Material deposited by wind is called.
Regolith
Colluvial
Alluvium
Eolian
Right Answer
Q.22
Which is passive factor of weathering?
Climate
Organisms
Parent material
Temperature
Right Answer
Q.23
Who gave the equation for study of soil property?
Ziebig
Neil
Newton
Hans Jenny
Right Answer
Q.24
Product of microorganism that appears to chelate calcium?
Pyruvic acid
2-ketogluconic acid
Carbon dioxide
Phosphoric acid
Right Answer
Q.25
Relationship, which exists between lichen.
Parasitic
Symbiotic
Host-guest
Saprophytic
Right Answer
Q.26
Expansion of water on freezing is ____?
1%
0.9%
9%
3%
Right Answer
Q.27
Weathering is____?
Destructive process
Constructive process
Both a & b
None of these
Right Answer
Q.28
Geochemical weathering processes occurs
On surface
Below soil solum
At the level
On the mountain
Right Answer
Q.29
Weathering will____?
Cease after complete formation of soil
It is continuous process
It occurs according to requirement
All of the above.
Right Answer
Q.30
No. Of mineral deposits found in Pakistan is:
100
60
3
None of these
Right Answer
Q.31
Which compound is mostly used in Pakistan for the reclamation of Saline-Sodic & Sodic soils.
Apatite
Dolomite
gypsum
Calcite
Right Answer
Q.32
Which mineral contains Phosphorus____?
Igneous
Metamorphic
Apatite
None of these
Right Answer
Q.33
Color of muscovite is____?
White
Black
Yellow
Light Green
Right Answer
Q.34
(Ca) NaAlSi3Og is formula of_____?
Plagioclase Feldspar
Pyroxenes
Feldspar
Quartz
Right Answer
Q.35
Most abundant mineral is the earth crust is___?
N-Feldspar
Feldspar
S-Feldspar
Amphibole
Right Answer
Q.36
Fracture can be defined as___?
Irregular Breaking
Breaking along defined plains
At right angle
None of these
Right Answer
Q.37
The streaked appreance of Granitic gneiss is called____?
Marl
Lineation
Still
Halite
Right Answer
Q.38
Schist is example of_____?
Stone
Metamorphic rock
Name of mountain
Plastica
Right Answer
Q.39
Which rocks are harder____?
Metatamorphic
Sedimentary rocks
Igneous
Sandstone
Right Answer
Q.40
Metamorphic rocks are formed from_____?
Igneous rocks
Sedimentary
Both a&b
Cleavage
Right Answer
Q.41
Evaporate means____?
Evaporation of liquid
Sales ppt from water
Vapours
None of these
Right Answer
Q.42
Example of Evaporate is____?
An hydrite
Gypsum
Both a&b
None of these
Right Answer
Q.43
Marble is____?
Hard clay
Stone
Stone
Soft line mud
Right Answer
Q.44
Rocks formed by compacted clays or mud are called:
Shale
Clay stone
Sandstone
Plastics
Right Answer
Q.45
Silt stones consist of grains whose size range from.
0.625 mm
0.002 mm
0.0625 mm
Both b&c
Right Answer
Q.46
The size of grains present in sands structure range: -
2-0.0625 mm dia
0.0625-2mm
0- 1 mm dia
Non of above
Right Answer
Q.47
Rocks, which are formed by disintegration of pre-existing by weathering, are
Sandstone
Clastics
Igneous
Greis
Right Answer
Q.48
Which rock contains potash feldspar?
Syenite
Gabbro
Norite
All of the above
Right Answer
Q.49
Rhyolite is_____in nature?
Acidic
Basic
Both of above
None of these
Right Answer
Q.50
Weathering of gabbros gives_____?
Sand & Clay
Clay & Mg Oxides
Clay & Iron oxide
Sand iron oxide
Right Answer
Q.51
Tuff is_____?
Soil
Water
Volcanic ash
Consolidated ash
Right Answer
Q.52
Large pieces of erupted magma are called____?
Volcanic block
Dike
Volcanic ash
Sill
Right Answer
Q.53
Rocks having coarse bubble holes are called____?
Purr ice
Mafic
Felsic
Scoria
Right Answer
Q.54
Places where volcanoes occur are_____?
Pacific Ocean
Mediterrancan sea
Mid-Atlantic Ridge
All above
Right Answer
Q.55
Thickness of Dikes ranges from_____?
2-10 m
Few cm-10cm
Few m-10
12-10cm
Right Answer
Q.56
Thick concordant bodies which force the overlying sediments to form dome-shaped hills are called_____?
Laccoliths
Dike
Pegmatitic
Batholithis
Right Answer
Q.57
Structure size of aphantic rock is_____?
Course- grained like
Phenocryst
Large-Glassy
Fine-Grained
Right Answer
Q.58
Igneous rock whose crystal is >1 cm called____?
Plutonic
Felsic
Pegmatitic
Mafic
Right Answer
Q.59
Felsic rocks consist of____?
Fe
Biotitic
Quartz
Quartz & Feldspars
Right Answer
Q.60
Color of basic/mafic rocks is_____?
Dark-colored
Light green
Blue
Yellow
Right Answer
Q.61
Plutonic rocks are also called
Intrusive igneous
Metamorphic
Sedimentary
Extrusive igneous rock
Right Answer
Q.62
Fine-grained rocks formed on earth crust are called____?
Intrusive igneous rock
Sedimentary rock
Extrusive rock
Plutonic
Right Answer
Q.63
Rocks formed from molten magma are
Metamorphic
Igneous
Plutonic igneous rock
sedimentary
Right Answer
Q.64
The inner shell of the earth consists of
Fe
Ni
Silicate
both a & c
Right Answer
Q.65
Lithosphere refers to_____?
Zone of atmosphere
Zone of ozone
Zone of earth crust
Zone of water
Right Answer
Q.66
Hydrosphere refers to_____?
Zone of Water
Zone of atmosphere
Zone of Air
Zone of earth crum
Right Answer
Q.67
Age of earth is______?
4.5 billion yrs
4 billion
1 Billion yrs
6 billion
Right Answer
Q.68
Planets in our system are_____?
8
12
10
9
Right Answer
Q.69
Problem of erosion in Thal & Cholistan is due to
Wind
Water
Fire
atmosphere
Right Answer
Q.70
Mechanism of materials uptake by plant is by
Diffusion
Root interception
Mass Flow
All of above
Right Answer
Q.71
Father of agricultural chemistry is_____?
Von Liebig
Newron
Neil brady
J. jones
Right Answer
Q.72
Elements essentially required for growth of all plant species are____?
32
17
5
3
Right Answer
Q.73
Main product of photosynthesis is_____?
C12 H24 012
C6H12O6
C5 H12 06
C3H6O3
Right Answer
Q.74
Histosols are found in____?
Pakistan
Alaska
Canada
Both A & B
Right Answer
Q.75
Organic soils are called_____?
Peat
Muck
Aridisols
Both a&c
Right Answer
Q.76
Mineral soils contain organic carbon____?
>40%
<20
5
>1%
Right Answer
Q.77
Non-consolidated upper part of the earth crust that serves a natural medium for plant growth is called.
Water
Soil
Fire
Air
Right Answer
