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MEDIUM
ENGLISH
Agriculture
The most interfering biotic components are:
A
Birds
Option A
B
Herbivores
Option B
C
Hunters
Option C
D
Human beings
Option D
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MEDIUM
ENGLISH
Agriculture
The relationship between the alga Microcystis and the surrounding fauna corresponds to:
A
Amensalism
Option A
B
Parasitism
Option B
C
Predation
Option C
D
Exploitation
Option D
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MEDIUM
ENGLISH
Agriculture
The interspecific competition is also called:
A
Interference competition
Option A
B
Scramble competition
Option B
C
Allelopathy
Option C
D
Synnecrosis
Option D
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MEDIUM
ENGLISH
Agriculture
As an adaptation to fire, some plants produce lignotubres which are:
A
Borne on the leaves
Option A
B
Borne underground
Option B
C
Present on the main stem
Option C
D
Suspended from the branches
Option D
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MEDIUM
ENGLISH
Agriculture
When cane plants grown in the forest, they scamble over other vegetation and this corresponds to:
A
Commensalism
Option A
B
Competition
Option B
C
Exploitation
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
The serotinous cones show:
A
In situ seed germination
Option A
B
Longer viability
Option B
C
early cone separation
Option C
D
All these characters
Option D
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MEDIUM
ENGLISH
Agriculture
The following relationship does not correspond to mutualism:
A
Zoophily
Option A
B
Zoochory
Option B
C
Epiphytism
Option C
D
Mycorrhiza
Option D
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MEDIUM
ENGLISH
Agriculture
As a result of fire, there is destruction of the following components of soil:
A
Litter
Option A
B
Organisms
Option B
C
Inorganic matter
Option C
D
All of these
Option D
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MEDIUM
ENGLISH
Agriculture
The altitudinal range is from about 1,525 m. To 3,350 m. Extending to ______ on southerly aspects in case of dry temperate forests:
A
3,550 m
Option A
B
3,650 m
Option B
C
3,750 m
Option C
D
3,850 m
Option D
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MEDIUM
ENGLISH
Agriculture
The conifers generally form a fairly complete forest cover of good height is:
A
22 to 44 m
Option A
B
24 to 46 m
Option B
C
26 to 48 m
Option C
D
28 to 50 m
Option D
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MEDIUM
ENGLISH
Agriculture
Annual rainfall for Murree is:
A
1,300 mm
Option A
B
1,400 mm
Option B
C
1,500 mm
Option C
D
1,600 mm
Option D
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MEDIUM
ENGLISH
Agriculture
Annual temperature in case of Himalayan moist temperate forests: is _________
A
12.2
Option A
B
13.2
Option B
C
14.2
Option C
D
15.2
Option D
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MEDIUM
ENGLISH
Agriculture
The temperature deciduous tree genera, Acer, Aesculus, Prunus, Ulmus, Fraxinus, Corylus and Alnus are met with:
A
Fairly generally
Option A
B
Form local consociations
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Chir forests are near the western limit of their range in Pakistan and they extend eastwards upto _________
A
Bhutan
Option A
B
Sri Lanka
Option B
C
Nepal
Option C
D
Afghanistan
Option D
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MEDIUM
ENGLISH
Agriculture
Sub-tropical pine forest depict:
A
High forest in which Pinus roxburghii (Chir) forms practically whole of the top canopy
Option A
B
Which may be upto 37.5 m. High with trees upto 2.0 or 2.5 m. In girth
Option B
C
The pine canopy tends to be nearly even aged over compact areas sometimes of considerable extent
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Tropical thorn forests are these:
A
Which thorny usually hard wooded species predominate, Acacia spp. Being particularly characteristic
Option A
B
The trees usually have short boles and low branching crowns which rarely meet except on exceptionally favourable spots
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Tropical dry deciduous forest having:
A
An open rather low forest composed
Option A
B
A few trees of the thorn forest type
Option B
C
With a predominantly deciduous shrub layer
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Riverain forests are:
A
It is an important seral stage of tropical thorn forest type.
Option A
B
It forms a fairly complete canopy 12-15 m. High
Option B
C
Which Acacia arabica usually strongly predominates with varying amounts of Populus euphratica
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Irrigated forests are:
A
The outcome of human efforts on sub-marginal lands
Option A
B
Where irrigation water could be made available
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Tidal Swamp Forests is/are:
A
More or less dense forest of very low average height
Option A
B
Only 3-6 m
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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