What are four items name seas

True as the lakes are a marine body. also there's no difference in lake and ocean except for the size.

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen

Iwould choose c or d

The correct answer is:   [b]:   "physical systems" .