Why less rainfall and hotter weather would affect us?? Help me plsss

If there is less rainfall than in agriculture or river scarcity of water is increase and If hotter weather than we need more water to drink or other purpose and we fell to hot

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.