The difference in air temperature overland compared to overwater causes convection currents in the atmosphere. how would a person at the beach experience these convection currents

Warm, cold, warm, cold, warm, cold.

rinse and repeat.

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.