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31.

Flood flow and frequency analysis are:

A.	Flood flower peak discharge: Max quality or height (stage) of water during a period	B.	Flood stage: High water level human property or which overflows the normal banks of a stream
C.	Both (a) & (b)	D.	None of these

32.

The main causes of flood are:

A.	Local floods and their frequency is increased	B.	Denudation is watershed
C.	Compaction of soil and decrease in inf rate	D.	Rainfall pattern
E.	All of the above

33.

The major types of floods are:

34.

Flood frequency analysis based on:

A.	Flood data of past is collected and arranged in descending order	B.	Ranking of observation is carried out
C.	Probability of occurrence of certain flood is known	D.	All of the above

35.

Range lands are:

A.	Those areas of the world which by reason of physical limitation, low and erratic precipitation, rough topography, poor drainage	B.	Extreme temperature are unsuited to cultivation
C.	A source of wood products, water and wildlife	D.	All of the above

36.

Range resources of Pakistan are:

A.	Due to bioclimatic variations, the range vegetation varies from one area to other	B.	Range condition of the areas also varies from site to site
C.	Alpine pastures and northern mountain ranges are comparatively in fair to good condition	D.	All of the above

37.

Recoeions for improvement of range management in Pakistan are:

A.	The biological techniques like stabilization of sand dunes should be expanded over to other ranges also	B.	Range lands provide habitat for the conservation of wildlife and preservation of other natural resources
C.	New innovations like urea molasses etc may help in meeting nutritional requirements of the livestock	D.	Research on range lands must be augmented
E.	All of the above

38.

Trans-Himalayan grazing lands include:

A.	Landscape and environment	B.	Land use
C.	Range types	D.	All of the above

39.

Trans-Himalayan grazing lands spread over northern mountains in:

40.

The region constitutes a series of high mountain ranges of:

A.	Karakrum	B.	Hindu Kush
C.	Pamir	D.	All of the above