Forestry

Uniform system

Group system

Clear strip system

None of these

olea sp

colitis sp

Acacia modesta

All of the above

Seed should be collected only from healthy trees

The person should climb the tree and shake branches or pick the needs himself.

The falling seeds should be collected on a cloth sheet spread under the tree

All of the above

Labour arrangements

The raising and management ofirrigated plantations is a highly specialized operation requiring regular trained labour

Both (a) & (b)

None of these

Lithophytes

Oxalophytes

Phancrophytes

Psammophytes

Symbiosis

Commensalism

Mutualism

Parasitism

Agricultural productivity

Improvement of land

Growth of weeds

None of these

Due to bioclimatic variations, the range vegetation varies from one area to other

Range condition of the areas also varies from site to site

Alpine pastures and northern mountain ranges are comparatively in fair to good condition

All of the above

Decomposers

Detrivores

Both (a) & (b)

Heterotrophs

Eel

Crab

Sea gull

Phytoplanktons