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71.

Suleman Mountain ranges cover about how much area:

A.	1.5 million ha	B.	2 million ha
C.	2.5 million ha	D.	None of these

72.

The elevation of the Sulaman Range is between _____ above sea level:

A.	1000 and 2000 m	B.	1540 and 3400 m
C.	2000 and 4000 m	D.	None of these

73.

Annual rainfall in sulaman Mountain ranges:

A.	From 200 to 250 mm	B.	From 300 to 400 mm
C.	From 400 to 500 mm	D.	None of these

74.

Range Improvement involve special treatments or operations that will enhance:

A.	Agricultural productivity	B.	Improvement of land
C.	Growth of weeds	D.	None of these

75.

Range improvement is classified as:

A.	Plant introduction trials	B.	Range reseeding
C.	Both (a) & (b)	D.	None of these

76.

Natural revegetation is:

A.	Cheapest and slow process of rehabilitating depleted rangelands	B.	Costly and fast process of rehabilitating depleted rangelands
C.	Both (a) & (b)	D.	None of these

77.

Natural revegetation can be achieved by:

A.	Reducing stocking rates	B.	Changing season of use, initiating special grazing systems
C.	Proper distribution of livestock	D.	Additional water developmnt and protecting of the area from livestock grazing for longer periods
E.	All of the above

78.

Which area of Pakistan ha a high potential for natural revegetation:

A.	Pothwar	B.	Chholistan
C.	River side	D.	None of these

79.

Artificial reseeding is prescribed in which circumstances:

A.	When natural vegetation cannot recover within a short period and there are few desirable species	B.	In grassy plains
C.	In flooded areas	D.	None of these

80.

Name the principles and procedure which are used for reseeding of desert rangeland in Pakistan:

A.	Proper selection of range sites	B.	Choice of ecologically suitable species
C.	Use of mixture	D.	Elimination of plant competition
E.	All of the above