The soil type that is most likely to be found on the banks of river Ganga is
Mountain soil
Alluvial soil
Black soil
Red soil
Soil is formed by the breaking up of
minerals
rocks
plants
mud
A thing used for making pottery:
sand
soil
clay
Minute opening is called
ore
pore
core
sore
The top most layer of the earth is called:
Thermosphere
Lithosphere
Ozonosphere
Stratosphere
Red soil is red in colour due to the presence of large amounts of ______.
magnesium
nitrogen
iron oxide
nitric oxide
How many types of weathering are there?
1
2
3
4
The different layers of soil from the surface to the bedrock below forms the:
parent rock
gravel
subsoil
soil profile
Sandy soil contains sand to about
10-15%
60-70%
70-80%
none of these
Planting of trees is called:
deforestation
afforestation
cultivation
harvesting