Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Question: What can lenses be used to make? Answer: visual representations
Lenses can be used to make visual representations, called images .

Question: During what type of reproduction do two haploid gametes join in the process of fertilization to produce a diploid zygote? Answer: sexual reproduction
During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote.

Question: What state of hydrogen can be predicted based on the atoms to which it is bonded? Answer: oxidation
The oxidation state of hydrogen can also be predicted based on the atoms to which it is bonded. As with other pure elements, hydrogen has an oxidation state of zero in H 2 .