Natural Resources are naturally occurring substances that are considered valuable. These are raw materials obtained or derived from nature. Our major natural resources are forests, wetlands, mangroves, minerals, wildlife, etc.
Natural resources can be of two types:
(i) Renewable (e.g., forests, trees, wildlife, solar energy, wind energy, tidal energy) and
(ii) Non-renewable (e.g., minerals like coal, petroleum, natural gas, metal ores). Renewable resources can reproduce themselves in nature and we can harvest them continuously through a sustained proper planning and management. Non-renewable resources are mainly physical resources which are available in nature only in limited amounts and cannot be reproduced.