Forestry

A large suberect shrub

Branches scrambling over tall trees; armed with recurved thorns

Leaves 1-2 inch long, 25 inch across in threes

All of the above

Daubenmire/R.Misra/Koestle

Tansley

Weaver and Clements

Odum/Kormondy

It is quantity of water flowing in the stream or channel

Quantity, quality and timing of water yields are mostly affected by man

Both (a) & (b)

None of these

Policies: Develop system for effective periodic closure of range lands, to rehabilitate them and ensure sustainable livelihoods to range dwellers

Measures: Enforce existing land reform laws where absentee holdings of large tracts of range land are the impediment to proper management

Both (a) & (b)

None of these

Cycling of materials

Flow of energy

Both (a) & (b)

None of the above

Lemna, Wolffia, Spirodela

Nuphar, Nelumbo, Victoria

Scirpus, Typha, Sagittaria

Najas, Ceratophyllum, Elodea

3

2

4

None of these

Methods of raising tree crops and their growth and care upto the time of the final harvesting

Silviculture is the science and art of cultivating forest crops, based on knowledge of silvics

Both (a) & (b)

None of these

Eleocharis, Fimbristylis

Salix, Populus

Ranunculus, Polygonum

Acer, Ulmus

Exemption of custom duties on aerial ropeways and skyline cranes used exclusively for forest exploitation and management

Introduction of tree insurance scheme on a pilot project basis

Study tours abroad for progressive farmers to update their knowledge

All of the above