When you mix a solid material and a liquid, what observations tell you that a chemical reaction occurred ?

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Which best describes a rhinovirus? o a. a virus that causes a common cold o b. a protective shell around a virus o c. a tube the comes off a virus o d. a piece of dna transferred by a virus

If a baby girl guinea pig looks almost identical to its mother, does this then mean that it inherited more alleles from its mother? explain. (hint: think about the vocabulary words dominant and recessive.)