Class 8 > Social Studies (SST) Class 8 > Worksheet Solutions: Land, Soil, Water, Natural Vegetation and Wildlife Resources
Worksheet Solutions: Land, Soil, Water, Natural Vegetation and Wildlife Resources - Social Studies (SST) Class 8
Q.1. Which country has the highest percentage of land under forest?
Japan
Q.2. Which country has the highest percentage of land under pasture?
Australia
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?
India
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.
The document Worksheet Solutions: Land, Soil, Water, Natural Vegetation and Wildlife Resources | Social Studies (SST) Class 8 is a part of the Class 8 Course Social Studies (SST) Class 8.
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FAQs on Worksheet Solutions: Land, Soil, Water, Natural Vegetation and Wildlife Resources - Social Studies (SST) Class 8
| 1. What are the main factors that influence land degradation? |  |
Ans. Land degradation is influenced by several factors, including deforestation, overgrazing, improper agricultural practices, urbanization, and industrialization. These activities lead to soil erosion, loss of fertility, and the destruction of natural vegetation, ultimately resulting in land degradation.
| 2. How does soil erosion affect agricultural productivity? | |
Ans. Soil erosion has a negative impact on agricultural productivity. When the topsoil is eroded, essential nutrients and organic matter are lost, leading to a decrease in soil fertility. This, in turn, reduces crop yields and can even render the land unsuitable for cultivation.
| 3. What are the consequences of water pollution? | |
Ans. Water pollution can have severe consequences on both human health and the environment. Contaminated water can lead to waterborne diseases, such as cholera and dysentery. It also disrupts aquatic ecosystems, causing the decline of fish populations and the destruction of natural habitats.
| 4. How does deforestation contribute to climate change? | |
Ans. Deforestation significantly contributes to climate change. Trees absorb carbon dioxide, a greenhouse gas that traps heat in the atmosphere. When forests are cleared, the stored carbon is released into the atmosphere, contributing to the greenhouse effect and global warming.
| 5. What are the benefits of conserving natural vegetation and wildlife resources? | |
Ans. Conserving natural vegetation and wildlife resources is crucial for maintaining ecological balance. It helps in preserving biodiversity, protecting habitats, and ensuring the sustainability of ecosystems. Additionally, natural vegetation acts as a carbon sink, helping to mitigate climate change. Wildlife resources also provide economic opportunities through ecotourism and the sustainable use of natural resources.
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