Why do rocks expand?
Due to heat
Due to rain
Due to cold
Due to wind
Which is the soil that is dark in colour and in which plant grows?
Topsoil
Subsoil
Bedrock
Sandy soil
What kind of plant grow well in loamy soil?
Coconut tree
Rubber
Sugarcane
Melons
Which among the following soil is the combination of sand and clay that is very fertile?
Loamy soil
Clayey soil
Silty soil
Which soil is coarse in nature?
Why is top soil good for plant growth?
Because it is dark in colour
Because it is the topmost soil
Because it contains humus and mineral particles
Because it is not fertile
To improve quality of topsoil what do NOT farmers do
Farmers plough field
Use manure and fertilizers
Cultivate same crops
Irrigate
Sandy soil is found on which area
Desert
Forest
Grassland
Mountains
Which of the following is the process by which rocks break down to form soil?
Soil erosion
Weathering
Crop rotation
Irrigation
Rice, wheat and sugarcane grow well in which soil?
