Which soil cannot hold water well?
Black soil
Clayey soil
Sandy soil
Loam soil
Which gives soil different colors?
Humus
Rocks
Silt
Gravel
Soil gets polluted by :
Dumping garbage in water bodies.
Smoke from vehicles and factories.
Chemicals getting thrown into the soil.
Burning garbage outdoors.
The biggest cause of land pollution is :
Natural fertilizers
Loudspeaker
Smoke
Solid waste material
Why is soil important?
Because it provides home for animals.
Because we need soil to live.
Because of its ability to let plants grow in it.
Because animals need soil to grow.
Which is the effect of land pollution?
Various kinds of cancers
Asthma
Diarrhoea
Hypertension
Which is the most useful nutrient found in humus?
Carbon
Oxygen
Hydrogen
Nitrogen
Which is the smaller particle of soil?
Sand
Very tiny living things that cannot be seen by naked eye are :
Earthworms
Microbes
Bugs
Centipedes
Clayey soil can :
Most plants grow in it.
Lot of air in it.
Cannot hold water well.
Hold lot of water.
