Natural resources are substances or materials found in nature that have economic value. They are classified into two categories: renewable and non-renewable resources. Renewable resources, such as sunlight, wind, and water, can be replenished naturally. Non-renewable resources, such as fossil fuels and minerals, are finite and cannot be replaced once depleted.

The conservation of natural resources is essential to ensure their sustainable use for future generations. This involves reducing waste, recycling materials, and using resources efficiently. Conservation efforts also aim to protect ecosystems and biodiversity.

Depletion of natural resources occurs when resources are consumed at a faster rate than they can be replenished. This can lead to environmental degradation, loss of biodiversity, and ecosystem imbalance. To address this issue, sustainable resource management practices are encouraged, such as sustainable agriculture, forestry, and fisheries.

Overall, understanding natural resources and the need for their conservation is crucial for maintaining a balance between human activities and the environment.