PLZ ANWSER ITS ABOUT BIODIVERSITY

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

20 the compound al(nh3)2 has atoms of nitrogen.