What grows in the rich deposits of the delta?

Many agricultural goods can be farmed in river deltas.

Explanation:

In ancient times, when the first civilizations came into being, the primary sources of human consumption besides animal husbandry was agriculture. Many cultures have been created in the deltas of the Nile, Eufrat, and Tigris rivers, thanks to the abundance of water and the quality of the land around it. People in the river deltas farmed different agricultural goods and thus had a safe source of food.

i think it's severe storms but i might be wrong

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.