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Questions and Answers
What is the process used to conserve rainwater by collecting, storing, conveying, and purifying rainwater that runs off from rooftops, parks, roads, open grounds, etc. for later use?
Rainwater harvesting
Where is alluvial soil found in North India?
In the large plain formed by the river systems of Indus, Ganga, and Brahmaputra.
What are the consequences of soil erosion?
Soil particles breaking down by wind, water, snow, waves, etc.
What is the most suitable crop for black soil in India?
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What are the features of desert soil in India?
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What are the five physiographic divisions of India?
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Name the two classes of rivers in India based on their location.
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What are the three methods for irrigation in India?
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List four advantages of irrigation.
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Name four disadvantages of irrigation.
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Study Notes
Water Harvesting and Conservation
- Rainwater harvesting involves collecting, storing, conveying, and purifying rainwater that runs off from rooftops, parks, roads, open grounds, and other surfaces for later use.
Soil Types and Distribution
- Alluvial soil is found in the Indo-Gangetic Plain in North India.
Soil Erosion
- Consequences of soil erosion include loss of fertile topsoil, reduced crop yields, increased sedimentation in waterways, and decreased water-holding capacity.
Crop Selection
- Black soil in India is most suitable for cotton cultivation.
Desert Soil
- Desert soil in India is characterized by low humus and nutrient content, low water-holding capacity, and high salt concentration.
Physiographic Divisions of India
- The five physiographic divisions of India are the Himalayan Mountains, the Northern Plains, the Peninsular Plateau, the Indian Desert, and the Islands.
River Classification
- Rivers in India are classified into two categories based on their location: Himalayan rivers (e.g., Ganga, Brahmaputra) and Peninsular rivers (e.g., Godavari, Krishna).
Irrigation Methods
- There are three main methods of irrigation in India: surface irrigation, sprinkler irrigation, and drip irrigation.
Advantages of Irrigation
- Four advantages of irrigation are increased crop yields, improved crop quality, enhanced food security, and increased farmer income.
Disadvantages of Irrigation
- Four disadvantages of irrigation are waterlogging, soil salinization, increased energy consumption, and reduced groundwater levels.
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Description
This quiz covers the physiographic divisions of India including the northern mountains, northern plains, peninsular plateau, coastal plains, and islands. It also includes the classification of water resources into the rivers of the north and south, with details about specific river systems.
