caption: The image shows a black and white drawing of a cross section of a mountain with a tree growing out of it. The text at the bottom of the image reads "Geology of the Earth's crust". The mountain is depicted in great detail, with its ridges and valleys clearly visible. The tree is growing out from the top of the mountain, its branches reaching up towards the sky. The colors used in the drawing are mostly shades of green and brown, giving the image a natural, earthy feel.