When an earthquake occurs, energy radiates in all directions from its source. The source is also referred to as the . Group of answer choices epicenter

C. FOCUS

Explanation:

Focus is the point where the rock starts to fracture. It is referred to as the origin of the the earthquake. Also, known as the hypocenter, vibrating energy from the hypocenter travels in all directions. It's the point where rupture starts.

Epicenter is usually misinterpreted as the focus, but epicenter is actually the point on land that is directly above the focus. It isn't the starting point, but it's the point on the land that's above the starting point.

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.