Forestry

Cenchrus ciliaris

Lasiurus sindicus

Both (a) & (b)

None of these

Trees shrubs, herbs, anhnuals

And cultivated crops such as Acacias, Cassias, Eucalypts, Albizzias, Cherries, Dalbergia

Both (a) & (b)

None of these

50

60

70

None of these

Is guided and influenced by the social, economic

And environmental needs of a country, both present and future

Both (a) & (b)

None of these

Reducing over grazing

Planting proper plants

Making dams

All of those

Leaves

Flowers

Stems

Roots

H+

AI+3

Both (a) & (b)

H+ and Zn+2

Tpha

Trapa

Potamogeton

Ceratophyllum

High temperature of woil encourages root growth

Low temperature at night encourages root growth

Those plants adapted to produce long system can survive better in desert

Roots grow in search of water

Shock waves

Noise of traffic

Noise of siren

Unhearable sound