Name the layers of the earth starting at the crust and going in. describe the composition of each layer.

Which of the following is not a way in which a vascular plant's xylem and phloem are similar?

The energy needs of a human population are not affected by

Drag each tile to the correct box. match the given symbol or molecular formula to the term that best describes it. element -organic compound -inorganic elemental molecule -inorganic compound -answers given: so2, k, ci2, c6h6