Forestry

1.50%

1.80%

1.90%

1.10%

Producers only

Producers and consumers

Consumers and decomposers

All of these

4

3

2

1

Arid areas

Semiarid areas

Both (a) & (b)

None of these

The ratio of the amount of solar radiation (or visible range of radiation) reflected by a surface

The amount incident on it, also expressed as a percentage

Both (a) & (b)

None of these

Primary consumers

Producers

Secondary consumers

Tertiary consumers

Above 32′

At the soil surface

Between 32′ – 64′ from soil level

In the hydrosphere

Cause human disease

Cause diseases of other plants

Are useful in several industries

Bring about decomposition of dead animals and plant remains

Increase the palatability of forages and removal of old, dead material, thus increasing utilization by grazing animals

Suppression of undesirable brush plant

Preventing invasion of inferior species and to start grass growth 1-3 weeks earlier on fresh burns

All of the above

Nomadic grazing

Semi nomadic grazing

Local grazing

All of the above