What's a recharge area? a. the part of an aquifer where groundwater meets a lake or stream b. the part of an aquifer where surface water reaches the water table c. the part of an aquifer that's located between two aquicludes d. the part of an aquifer that's located at a lower elevation

D. The part of aquifer that's located at lower elevation.

Recharge area is the area where water is flown predominantly in downward direction through the unsaturated zone in order to replenish an aquifer.

To be more specific, it is an aquifer that's location is at a lower elevation zone. Recharge area is an important area so it needs a special protection and proper care. It is a widely used concept in the groundwater using techniques.

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.