Which organism is called friend of the farmers?
Ant
Beetle
Snail
Earthworm
Cotton grows well in:
Black soil
Alluvial soil
Red soil
Sandy soil
Which soil is good for the growth of plants?
Top soil
Subsoil
Bedrock
Clay
Which soil is not good for plants?
Sub soil
Bed rock
Both b & c
The factor responsible for the formation of soil?
Sun and rain
Running water
Moving ice
All the above
Soil has:
Humus
Air
A type of soil:
Sand
Loam
Red soil is best for the cultivation of:
Black gram
Cotton
Sugarcane
Rice
The main inorganic component of soil is:
Calcium
Silica
Phosphorus
Iron
The colour of red soil is due to the presence of:
Copper
Nitrogen
Red oxide
