Infrastructure: Engine of India’s DevelopmentClass 7 Social Science NCERT Solutions
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Q1Questions and activities
Which form of physical infrastructure has been built in your area in the last decade? How do you think it has benefitted you or your family members? If you could build something for the community, what would it be?
Solution
This question requires a personal observation. However, based on the chapter, here is a sample answer:
In the last decade, a new metro line was built in my area. This has greatly benefitted my family and me. My father's commute to his office is now much faster as the metro helps him skip the heavy road traffic. It is also a cheaper and more environmentally friendly way to travel compared to using a car. The area around the metro station has also developed, with new shops and services opening up, which is very convenient.
If I could build something for the community, I would build a large public library with a community centre. This would be a form of social infrastructure. It would provide a quiet place for students to study, give everyone access to a wide range of books, and the community centre could be used for local events and workshops. This would support the wellbeing and development of our community.
Q2Questions and activities
How does infrastructure like ports, highways, and airports create jobs in different parts of the country? Can you think of indirect ways people benefit from it?
Solution
Infrastructure projects like ports, highways, and airports create jobs in both direct and indirect ways.
Direct Job Creation:
- Construction and Maintenance: Building and maintaining this infrastructure requires a large workforce, including engineers, construction workers, and maintenance staff.
- Operations: Once built, these facilities need people to operate them. For example, Indian Railways is the largest employer in the country, with jobs for engineers, ticket collectors, and service staff. Airports require pilots, ground staff, and air traffic controllers. Ports need workers to load and unload cargo.
Indirect Job Creation:
- Supporting Services: The presence of major infrastructure hubs creates a demand for supporting services. For instance, areas around railway stations and airports see a growth in businesses like catering, vending, taxi services, and hotels.
- Boosting Trade and Tourism: Better connectivity through highways and airports boosts trade, allowing businesses to transport goods more easily. This supports jobs in manufacturing and logistics. It also promotes tourism, creating jobs in hotels, restaurants, and for tour guides.
- Economic Growth: By connecting remote areas and markets, infrastructure enables farmers to sell their produce before it spoils and allows new businesses to emerge, leading to overall economic growth and more employment opportunities for the community.
Q3Questions and activities
Why is it important to think about the environment when building new infrastructure like roads or airports? Can infrastructure development and environmental protection go hand in hand? If yes, how?
Solution
It is very important to think about the environment when building new infrastructure because construction can lead to pollution and harm biodiversity. For example, early trains used coal and diesel, which caused a lot of pollution. Building roads through forests can disrupt animal habitats.
Yes, infrastructure development and environmental protection can go hand in hand. This is known as creating safe and sustainable infrastructure. Here is how it can be achieved:
- Using Cleaner Energy: Infrastructure can be powered by renewable energy sources. For example, the Delhi Metro uses solar power, and Indian Railways is aiming to have 100 percent of its trains run on electricity, which is better for the environment than diesel.
- Environment-Friendly Materials: Using sustainable and locally sourced materials for construction can reduce the environmental impact.
- Protecting Biodiversity: Infrastructure can be designed to minimize harm to wildlife. The chapter provides an example of using alarm systems to alert authorities when animals cross railway tracks, which helps prevent accidents.
- Innovative Design: Modern airports, like the Kempegowda International Airport in Bengaluru, are designed with green spaces, bamboo structures, and plants, creating an eco-friendly environment. The living root bridges of Meghalaya are a perfect example of infrastructure that is in harmony with nature.
Q4Questions and activities
How can better infrastructure (like roads, airports, communication systems) help during natural disasters like floods or earthquakes?
Solution
Better infrastructure plays a crucial role during natural disasters like floods or earthquakes in the following ways:
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Roads and Bridges: A good network of roads and bridges is essential for emergency services. It allows ambulances to reach hospitals quickly and enables rescue teams to get to affected areas to provide aid. For example, the Dhola Sadiya Bridge in Assam provides year-round travel, which is critical during floods when ferry services stop.
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Air Transport: Air transport is especially helpful for reaching difficult terrains like high mountains or areas cut off by floods. Airplanes and helicopters can be used to deliver essential supplies like food, water, and medicine, and to airlift stranded people to safety.
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Communication Systems: A robust communication infrastructure is vital for disaster management. It allows authorities to send out quick mobile SMS alerts or use apps to warn people about an impending disaster. It also helps in coordinating rescue and relief efforts by enabling communication between different agencies and with the affected population.
Q5Questions and activities
Have you ever noticed people misusing public spaces, like scribbling on walls, breaking streetlights, or damaging benches? What are its consequences? Write your observations and suggest solutions to prevent it.
Solution
Yes, I have observed people misusing public spaces. For instance, I have seen writings on the walls of historical monuments and litter thrown on the roads and in parks. I have also seen broken benches in public parks.
Consequences:
- Reduces Ease of Living: Such damage makes public spaces unpleasant and unusable for everyone. A littered park is not a nice place to play, and a broken streetlight makes a road unsafe at night.
- Economic Burden: Repairing this damage costs money, which comes from taxes paid by citizens. This money could have been used to build new infrastructure or improve other public services.
- Negative Image: Damaged and dirty public infrastructure presents a poor image of our community and country to visitors.
Solutions:
- Collective Responsibility: As the chapter suggests, taking care of public infrastructure is a collective responsibility. We must treat public property as our own and use it responsibly.
- Reporting Damage: Citizens should be encouraged to report any damage, like potholes or broken streetlights, to the local authorities so that it can be fixed promptly.
- Awareness Campaigns: Schools and communities can run campaigns to create a sense of ownership and responsibility towards public infrastructure. Posters and community meetings can help spread the message.
- Penalties: As mentioned in the context of the Arthaśhāstra, the government can impose fines or penalties on those who damage public property to deter such behaviour.
Q6Questions and activities
Prepare 'scenario posters' for the following situations: → A new factory is planned in an area. What form of infrastructure is required for its smooth operation? → Self-cleaning roads, underground highways, and high-speed bullet trains could be part of a futuristic city! Imagine the kind of infrastructure that would be required in the future that could help ease the lives of the people and communities in your city, town or village for various day-to-day functions. → Think about upgrades to the infrastructure near you, considering the terrain of your area, such as coastal, mountainous, plains, etc., and the type of natural calamities your region is prone to. → If you could design a new railway or metro station, what would it look like and what features would you add to make it more fun and comfortable for the passengers?
Solution
Here are the ideas for the 'scenario posters' based on the chapter:
Scenario 1: Infrastructure for a New Factory
- Transportation: Wide roads and highways to transport raw materials to the factory and finished goods to markets. A connection to the nearest railway line for transporting heavy goods efficiently.
- Utilities: A reliable electricity supply from the power grid to run machinery. A steady water supply through pipelines for industrial processes.
- Communication: High-speed internet and telephone lines for communication with suppliers and customers.
- Social Infrastructure: Housing, schools, and hospitals for the factory workers and their families.
Scenario 2: Infrastructure for a Futuristic City
- Transportation: High-speed bullet trains connecting cities, running on fully electrified tracks. A network of underground highways to reduce surface traffic and pollution. Smart traffic management systems to control vehicle flow.
- Communication: Universal access to super-fast internet (5G and beyond) for seamless connectivity, supporting e-governance, online education, and e-commerce.
- Energy: A smart grid that uses clean energy sources like solar and wind power, with buildings having their own solar panels.
- Waste Management: Automated waste collection and recycling systems to keep the city clean.
Scenario 3: Infrastructure Upgrades based on Terrain
- Mountainous Area (prone to landslides): Build more tunnels and strong bridges like the Dhola Sadiya Bridge to ensure year-round connectivity. Implement early warning systems using communication infrastructure to alert people about landslides.
- Coastal Area (prone to cyclones): Construct elevated roads and stronger ports that can withstand storm surges. Develop a robust communication network for timely cyclone warnings and evacuation alerts.
- Plains (prone to floods): Build elevated highways and railway tracks in low-lying areas. Improve drainage systems and create better water management infrastructure.
Scenario 4: Design for a New Railway/Metro Station
- Eco-Friendly Design: Inspired by the Kempegowda Airport, the station would have a 'garden' theme with many plants and open spaces. It would use solar panels on the roof for its electricity needs.
- Passenger Comfort: Comfortable seating areas, clean washrooms, and a variety of food stalls and shops. Clear signages and digital display boards with real-time train information.
- Accessibility: The station would be designed to be friendly for children, the elderly, and disabled persons, with ramps, elevators, and tactile paving.
- Integration: It would be seamlessly connected to other forms of transport like bus stops and taxi stands to make travel easier for commuters.
Q7Questions and activities
Today's modern infrastructure requires consistent technological innovations. For instance, electric vehicles are increasingly being used by people as a cheaper alternative to polluting fuel like diesel or petrol. Find out about other innovations in infrastructure that can improve ease of living or mobility for communities.
Solution
Based on the chapter and general knowledge, here are some other innovations in infrastructure:
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Electrification of Railways: As mentioned in the chapter, India is moving towards 100% electrification of its railway network. This is a major innovation that reduces pollution, is more energy-efficient than diesel, and makes train travel smoother and faster.
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High-Speed Trains: The development of semi-high-speed trains like the Vande Bharat Express and plans for bullet trains represent a significant technological leap. They drastically cut travel time between major cities, boosting business and tourism.
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Smart Communication Networks: The evolution from landlines to 5G technology is a major innovation. This allows for instant global connectivity, supporting e-governance, online education, and e-commerce. It also enables other smart technologies like smart traffic lights and emergency alert systems.
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Sustainable Airports: Modern airports like the Kempegowda International Airport are innovations in design. They incorporate green building materials, renewable energy sources like solar power, and natural elements to create a sustainable and pleasant environment for passengers.
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Digital Governance (E-governance): The use of technology to deliver government services, such as the DigiLocker app, is an innovation in communication infrastructure. It improves ease of living by allowing citizens to access important documents and services online, reducing the need to visit government offices.