Hi um

at the beach, differences in temperatures create wind which transfers heat between the land and the water. the same process is also seen in the ocean as the gulf stream carries heat from the tropics northward. heat transfer through any intermediate fluid is known as
a) condensation.
b) conduction.
c) convection.
d) radiation.

it is actually c.) convection on usa test prep

Explanation:

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.