If an individual points out that two factors are unique, Never say they 'produce a difference' between the points. You say that they produce a difference or draw a difference between them. dermal ectodermal endodermal epidermal epithermal geothermal hydrothermal intradermal isothermal mesodermal photothermal electrothermal See All Rhymes for thermal https://zanderduixm.jts-blog.com/35074940/how-much-you-need-to-expect-you-ll-pay-for-a-good-thermal-shock-testing-for-electronics