Which of the following is the main basis for the division of political units in Europe?

The politics of Europe deals with the continuous evolution of politics in Europe.

Explanation:

The politics of Europe is traced back to historical events. The modern politics of Europe has been continually dominated by the European Union. Several international organizations were made up of the European nation.

There were most of the European states wants to join the European Union. Most of the European states are members of the International organization. All states are economically as well as politically related to this organization.

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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.