Explanation:

Goods and Services provided by ecosystems include:

• Provision of food, fuel and fiber.
• Provision of shelter and building materials.
• Purification of air and water.
• Detoxification and decomposition of wastes.
• Stabilization and moderation of the Earth's climate.
• Moderation of floods, droughts, temperature extremes and the forces of wind.
• Generation and renewal of soil fertility, including nutrient cycling.
• Pollination of plants, including many crops Control of pests and disease.
• Maintenance of genetic resources as key inputs to crop varieties and livestock breeds, medicines, and other products.
• Cultural and aesthetic benefits.

The concept of ecological debt was coined by southern NGOs at the beginning of the 1990s. It usually refers to the ecological damage caused by industrialized countries to the southern hemisphere and/or to the use of ecosystem services at the expense of southern-hemisphere countries. Currently, several NGO networks from north and south are campaigning for the recognition of the concept.
Hence option 4th is correct.