Describe the following terms in short. (i) Actual resources (ii) Non-renewable resources (iii) Ubiquitous resources (iv) Natural

(i) Actual resources

Actual resources are those that have been surveyed, their quantity and quality determined, and are being used in present times. For example, petroleum and natural gas is actively being obtained from the Mumbai High Fields.

(ii) Non-renewable resources

Nonrenewable energy resources include coal, natural gas, oil, and nuclear energy. Once these resources are used up, they canno be replaced, which is a major problem for humanity as we are currently dependent on them to supply most of our energy needs.

(iii) Ubiquitous resources

ubiquitous resource is one of the natural resources. It is ubiquitous as found in every location. These are renewable resources. Sunlight, air, and water are some examples of such resources.

(iv) Natural resources

Natural resources are materials from the Earth that are used to support life and meet people's needs. Any natural substance that humans use can be considered a natural resource. Oil, coal, natural gas, metals, stone and sand are natural resources. Other natural resources are air, sunlight, soil and water.