The possible beneficial affect of grazing animals is the
The possible beneficial affect of grazing animals is the
- A
Removal of wild animals
- B
Eradication of weeds
- C
Removal of wild plants
- D
Addition of their excrete to the soil
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The idea of food chain was introduced by which one of the following ecologist
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The light intensity can be measured by
The light intensity can be measured by
Read the following statements w.r.t. features of biomes and select the correct option for tropical rain forests
$a.$ Buttress roots
$b.$ Vines, lianas and epiphytes are abundant
$c.$ Highly leached soils
$d.$ Soil has high base content
$e.$ $30-40 \;m$ tall canopy structure with $2-3$ strata only
Read the following statements w.r.t. features of biomes and select the correct option for tropical rain forests
$a.$ Buttress roots
$b.$ Vines, lianas and epiphytes are abundant
$c.$ Highly leached soils
$d.$ Soil has high base content
$e.$ $30-40 \;m$ tall canopy structure with $2-3$ strata only
In recent years, there has been an increasing incidence of floods in the plains of northern India because
In recent years, there has been an increasing incidence of floods in the plains of northern India because
Number of endangered species of angiosperms in India is
Number of endangered species of angiosperms in India is