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Switzerland; Confederation, Direct democracy, Federal republic, Directorial system

South Africa; Parliamentary republic, Constitutional republic

North Korea; Dictatorship, Socialist state, Juche, One-party state

Saudi Arabia; Monarchy, Absolute monarchy, Islamic state, Unitary state

Denmark; Monarchy, Representative democracy, Parliamentary system, Constitutional monarchy

Brazil; Presidential system; Federal republic

Explanation:

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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.