Forestry

Control of composition and structure of growing stock

Harvesting and marketing the forest produce

Administration of forest property and personnel

All of the above

Nitrites

Nitrates

Nitrogen

Nitric and nitrous acids

Ethylene

3.4 Benzpyrene

N2O

PAN

SO2

Fly ash

CO

Hydrocarbons

45,60

50,70

60,80

None of these

Structure of the system (nature and arrangement of components)

Function of the system (role and output of components)

Socio-economic seals and management levels of the system

All of the above

Primary producers is larger than that of primary consumers

Secondary consumers is the largest because they are the most powerful

Primary consumers outnumber primary producers

Primary consumers is the least dependant upon primary producers

Cutting is made from one-year-old plants. Preferably stem cutting of 20-25 cm length and finger thickness are used

Where one-year-old plants are produced for panting out. The root-shoot cutting and two cutting from the proximal end of the stem are made from one yea

Both (a) & (b)

None of these

Tansley

Odum

Clements

Des Voeux

20 times

100 times

2 times

200 times