What is the process of planting trees in place of trees that are cut down called?
Deforestation
Afforestation
Reforestation
Reinstation
The processing of wearing away of rocks is called:
Weathering
Watering
Breaking
Squeezing
Construction of which of the following along the river banks helps in preventing soil erosion?
Terraces
Embankments
Canals
Wind breakers
Protection of soil from erosion is called:
Comparison
Conservation
Preservation
Prevention
Which is necessary for prevention of soil erosion?
Drainage system
Waste disposal
Pesticides
Fertilization
Which is the second layer of soil?
Top soil
Subsoil
Parent soil
Bedrock
Why are forests important?
Because forest is full of trees
Because we can see many wild animals in the forest
Because forest help cleaning the air we breathe
Because forests are source of fresh water
Deforestation refers to:
Planting of trees
Cultivation of crops
Disappearance of forests
Depletion of forests
Which is very important for the growth of plants?
Space
Pot
Land
Soil
The mineral and organic materials on the surface of the earth is:
Gravel
Rocks
Humus
