What is the worlds tallest mountain from base to peak

It is either Mount Everest or Mount Chimbarazo.

Explanation:

If you just see from the base to the height then Mount Everest but if you measure from sea level, it is Munt Chimbarazo

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.

answer biscay bay;