Which of the following statements is false? 1. Sea breezes can sometimes result in showers and thunderstorms near the shore,
2. Smaller versions of sea/land breezes often form in the vicinity of large lakes.
3. Land breezes form mostly during the daytime hours.
4. Sea and land breezes are examples of thermal circulations.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.