"But this is the only surface of the landscape. Below all this is the earth itself, of various contours, compositions and textures."
Would you explain what contour is? For the above what is the difference between contours, compositions and textures?
The sentence is about earth's crust.
Source: Understanding Chemistry.
Thank you.
Okay, here are the rough differences. Contours refer to shapes (hills and valleys). Compositions refer to the materials (rock and sand).
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Okay, here are the rough differences.
Contours refer to shapes (hills and valleys).
Compositions refer to the materials (rock and sand).
Textures refer to the surfaces (rough and smooth).
Does this answer your question?