Q.1. Which country has the highest percentage of land under forest?
Q.2. Which country has the highest percentage of land under pasture?
Q.3. What method of soil conservation is used in coastal and dry regions?
Shelter belts are used to protect the soil in coastal and dry regions.
Q.4. What make the soil fertile?
The right mix of minerals and organic matter make the soil fertile.
Q.5. Why is ocean water not fit for human consumption?
The ocean water is saline. Hence it is not fit for human consumption.
Q.6. Which are the two main climatic factors responsible for soil formation?
Temperature and rainfall are the two main climatic factors responsible for soil formation.
Q.7. What do you mean by shelter belt?
Rows of trees planted in the coastal areas to check the wind movement is called shelter belt.
Q.8. What are the major types of vegetation in the world?
The major vegetation types of the world are grouped as forests, grasslands, scrubs and tundra.
Q.9. Which country has the highest percentage of land under cropland?
Q.10. What are the major threats to soil as a resource?
Soil erosion and depletion are the major threats to soil as a resource.
Q.11. What percent of fresh water is fit for human use?
Only 1 per cent of freshwater is available and fit for human use.
Q.12. What affect the rate of humus formation?
Flora, fauna and micro-organism affect the rate of humus formation.
Q.13. What is soil?
The thin layer of grainy substance covering the surface of the earth is called soil.
Q.14. Which method is most appropriate to check soil erosion on steep slopes?
Terrace farming is the most appropriate method to check soil erosion on steep slopes.
Q.15. How are forest classified on the basis of latitude?
Forests are classified as tropical or temperate based on their location in different latitudes.
|1. What are the main factors that influence land degradation?
|2. How does soil erosion affect agricultural productivity?
|3. What are the consequences of water pollution?
|4. How does deforestation contribute to climate change?
|5. What are the benefits of conserving natural vegetation and wildlife resources?