Red soil is red in colour due to the presence of large amounts of ______.
magnesium
nitrogen
iron oxide
nitric oxide
A thing used for making pottery:
sand
soil
clay
mud
Where is sandy soil usually found?
in desert areas
in polar areas
in equatorial areas
both a & b
Sandy soil contains sand to about
10-15%
60-70%
70-80%
none of these
A type of weathering that takes place due to temperature changes the action of plants,wind and water
physical
chemical
biological
The best protectors of topsoil
plants and trees
humans
animals
microorganisms.
What do farmers and gardeners need as it is most suitable for growing plants?
fertilizers
loam
pesticides
The different layers of soil from the surface to the bedrock below forms the:
parent rock
gravel
subsoil
soil profile
A plant that does not need much water to grow:
rose plant
date palm
cacti
sunflower plant
How many types of weathering are there?
1
2
3
4
