• Stop wastage of water.
• Switching off unnecessary lights and fans.
• Don’t waste food. Take as much as you require.
• Walking down or use cycle for going to nearby market instead of using vehicle.
• Separate wastes into recyclable and non-recyclable.
• Reuse carry bags, packing materials, plastic containers and other reusable material.

For more answers visit to website:
https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-15/