CBSE Class 10 Science Chapter 16: Management of Natural Resources NCERT Solutions

Solution: To make our homes more environment-friendly, we can implement several changes:

1. Waste Segregation: Separate household waste into categories like recyclables (paper, plastic, metal, glass) and non-recyclables (biodegradable waste, sanitary waste). This facilitates proper disposal and recycling.

2. Judicious Use of Resources: Conserve water by fixing leaks, taking shorter showers, and reusing water where possible. Similarly, reduce electricity consumption by switching off lights and fans when not in use, and unplugging devices.

3. Reduce Food Waste: Plan meals carefully, store food properly, and compost organic waste to minimize the amount of food thrown away.

4. Reuse and Repurpose: Find new uses for old items. For example, old newspapers can be used for crafts or packing, and plastic containers can be repurposed for storage.

5. Natural Ventilation: Maximize the use of natural light and ventilation by keeping windows open. This reduces the need for artificial lighting and cooling devices like fans and air conditioners.

6. Adopt the 3Rs: Actively practice the principles of Reduce (consume less), Reuse (use items multiple times), and Recycle (process waste materials into new products).

Solution: Several changes can transform a school into a more environment-friendly institution:

1. Green Spaces: Plant trees along boundary walls, and cultivate shrubs and small plants around internal pathways and the playground. This improves air quality and aesthetics.

2. Water Conservation: Implement rooftop rainwater harvesting systems to collect rainwater. This harvested water can then be used for watering plants, flushing toilets, or other non-potable uses, reducing reliance on municipal water supply.

3. Awareness Programs: Organize regular awareness campaigns for students through poster exhibitions, seminars, and workshops on environmental conservation topics.

4. Resource Management: Encourage the recycling of paper for craft purposes and promote the avoidance of water wastage in restrooms and canteens.

5. Waste Management: Set up proper waste segregation bins throughout the school and educate students on correct waste disposal practices.

6. Energy Efficiency: Promote the use of natural light and ventilation, and encourage energy-saving habits among students and staff.

Solution: The chapter identifies several stakeholders in forest and wildlife management, including local communities dependent on forests, the forest department, and nature enthusiasts.

Ideally, the authority to decide on the management of forest produce should be shared, with a significant say given to the local people who live in or around the forests. This is because:

1. Dependence and Livelihood: Local communities often depend directly on forest resources for their livelihood, shelter, and daily needs. Their involvement ensures that management practices are practical and sustainable for their way of life.

2. Traditional Knowledge: These communities possess valuable traditional knowledge about the local ecosystem, sustainable harvesting methods, and the regeneration cycles of forest resources.

3. Stewardship: When local people have a stake in management, they are more likely to act as stewards, protecting the forest from illegal activities and ensuring its long-term health, as they benefit directly from its preservation.

While the forest department has legal ownership and the responsibility for conservation, and nature enthusiasts bring expertise and a conservationist perspective, empowering local communities fosters a sense of ownership and promotes more effective, equitable, and sustainable forest management.

Solution: As an individual, you can make significant contributions to the management of natural resources in several ways:

(a) Forests and Wildlife:

• Participate in Conservation Efforts: Join or support local community initiatives focused on afforestation, wildlife protection, and habitat restoration.
• Responsible Tourism: When visiting forests or wildlife areas, strictly adhere to conservation guidelines. Avoid littering, do not disturb wildlife, and stay on designated paths.
• Reduce Consumption: Minimize the use of paper and wood products, as their production often impacts forests. Choose recycled paper products.
• Raise Awareness: Educate friends and family about the importance of conserving forests and wildlife.

(b) Water Resources:

• Conserve Water at Home: Fix leaky taps, take shorter showers, reuse water from washing vegetables for plants, and avoid unnecessary water usage.
• Rainwater Harvesting: If possible, install a simple rainwater harvesting system at home to collect and store rainwater for gardening or other non-potable uses.
• Prevent Pollution: Avoid dumping waste into rivers, lakes, or drains, as this pollutes water bodies.

(c) Coal and Petroleum:

• Save Electricity: Reduce electricity consumption by switching off lights, fans, and appliances when not needed. Use energy-efficient appliances.
• Use Public Transport: Opt for public transportation, carpooling, cycling, or walking whenever possible to reduce the demand for fossil fuels used in private vehicles.
• Reduce Travel: Combine errands to minimize trips, and consider alternatives to long-distance travel when feasible.
• Efficient Use of Fuel: Ensure vehicles are well-maintained for optimal fuel efficiency.

Solution: As an individual, reducing consumption of natural resources is crucial for sustainability. Here are several actions you can take:

1. Save Electricity: Minimize the use of electrical appliances. Switch off lights, fans, and electronics when not in use. Opt for energy-efficient devices.

2. Conserve Water: Be mindful of water usage. Fix leaks promptly, take shorter baths, and reuse water whenever possible. Avoid letting taps run unnecessarily.

3. Reduce Food Waste: Plan your meals, buy only what you need, store food correctly, and consume leftovers. Composting food scraps also reduces waste going to landfills.

4. Use Alternative Fuels: Where possible, use cleaner and more efficient cooking fuels like LPG instead of firewood, which can lead to deforestation.

5. Practice the 3Rs: Actively implement the principles of Reduce (buy less, use less), Reuse (find multiple uses for items), and Recycle (process waste materials into new products). This significantly lowers the demand for raw materials.

6. Choose Sustainable Products: Whenever possible, opt for products made from recycled materials or those that are designed for durability and minimal environmental impact.

7. Reduce, Reuse, Repair: Before discarding an item, consider if it can be repaired or repurposed.