Astudent writes the following explanation of how one type of compound is formed. these compounds are made by the repeated joining of one smaller unit to the end of a growing chain. the units are generally alkenes, which retain all their atoms in the chain. a compound which undergoes a similar process is polyethylene.
which process is being described?
condensation polymerization
addition polymerization
dehydrohalogenation
dehydrogenation

addition polymerization

Explanation:

Addition polymerization : A chemical reaction in which small units called as monomers are joined to form a bigger molecule called as polymer.

Condensation polymerization : A chemical reaction in which small units called as monomers are joined to form a bigger molecule called as polymer and small by products are also formed along with the polymer.

Dehydrohalogenation: A chemical reaction in which hydrogen and halogen are removed from alkyl halides using alcoholic KOH resulting in the formation of alkenes.

Dehydrogenation : A chemical reaction in which hydrogens are removed from hydrocarbons using oxidizing agents resulting in the formation of alkenes or alkynes.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

hurricanes form in warm water