Explain where the study area is located e. g map of Asia indicating india

The study area is an area demarcated on a map that shows the specific area to be studied.

The study area of a map is the area on which that map is focused. Usually this area is marked with lines or other features for easy identification by the reader.

For example, if we want to study a specific country we must get a map that includes the information we require. However, the map must have lines, points or other legends that allow us to understand what the specific study area is.

Generally, the study area of a map is in the center and in the peripheral areas are the countries bordering that region or the seas or oceans.

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radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.