Several kinds of minor forest produce are available from the forested areas; these include _________
A.Flosses, medicinal plants,
B.Gums, essential oils rosin and turpentine tannins
C.Silk and lack production
D.All of the above
Category: Importance of Trees Mcqs
Honey bees collect ectar and pollen from about 500 wild and cultivated plant species including:
A.Trees shrubs, herbs, anhnuals
B.And cultivated crops such as Acacias, Cassias, Eucalypts, Albizzias, Cherries, Dalbergia
C.Both (a) & (b)
D.None of these
Air pollution is caused by:
A.The amoke, gases and fumes coming out of the factory chimneys
B.The transport vehicles badly pollute the air
C.Both (a) & (b)
D.None of these
Trees and the landscape is:
A.Trees and shrubs play in important and significant role in improvement of the landscape
B.By judicious use of trees, it has been possible to convert, dull drab and nonotonous country side into a green and colorful expanse
C.Both (a) & (b)
D.None of these
Production of constructional timber is:
A.The main enduses are all kinds of building construction wood containers and creates, cots and beds, mining timber
B.All sorts of carts, truck, bus and trolley bodies, bamboo carts, boards, railway carriages
C.Building construction and wood containers alone constitute about 50% of the consumption
D.All of the above
Distillation and extraction products is / are:
A.Deodar wood oil, chir oil and katha etc are some of the products of distillation and extraction, eucalypt leaves give oil
B.Lemon gras (Cymbopogan citrates) yield excellent oil.
C.Both (a) & (b)
D.None of these
The protective functions imply such important:
A.Phypsiograpphic features of the country, conservation of soil and water, regulation of stream flow
B.And prevention of such calamities as floods, land sides, siltation of dams and change in the course of rivers
C.Both (a) & (b)
D.None of these
The major floods in Pakistan have caused losses worth _____ million and are responsible for unsufficiency of food and subsequent higher import bills in the year to follw:
A.Rs.80,000
B.Rs.90,000
C.Rs.75,000
D.None of these
Trees and water is:
A.A number of processes which influence water movement from the time it falls on the watersheds
B.It leaves the area as stream flow or returns to the atmosphere through evaporation
C.Both (a) & (b)
D.None of these
For instance consumptive use of water by tamrix is 22 to 28,000 m3/ha/annum while that of willows and poplars is 7,700 to 13,500 and _____
A.6,500 to 23,00 m3
B.5,500 to 20,500 m3
C.4,500 to 18,500 m3
D.None of these
