Which of the following questions is used to classify organisms into Domains? Answer A Are the organisms unicellular or multicellular? B Are the organisms eukaryotic or prokaryotic? C Are the organisms nocturnal or diurnal? D Are the organisms autotrophic or heterotrophic?

b) mutualism

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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) : )

the answer is b. dilution

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.