Mystery #3Tier 2rock / layers
Why are tall cliffs often made of neat stripy layers?
Look at a tall sea cliff or a canyon wall and you often see neat horizontal stripes, band after band, as if someone had stacked coloured rugs all the way up. Rock looks solid and permanent, so why would it come in tidy layers at all? What made the stripes?
Your guess
What's your guess? How could solid rock end up in neat stripes?
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