You are given a sentence and your task is to generate another sentence that supports the given input.

According the law of superposition, we assume that the rock unit located on the bottom is older than the top layer.
Deeper layers of rock must be older than layers closer to the surface, this is the law of superposition.

And while poison oak and poison ivy do tend to have three-leaf clusters, poison ivy can have up to nine leaves per cluster, poison oak may have as many as five, and poison sumac usually has seven to 13 small leaves.
Poison ivy typically has three groups of leaves.

but when the earth s surface reradiates energy back to space, a significant portion of this thermal radiation is absorbed and reradiated by the atmosphere s CO 2 molecules back to the earth s surface, incrementally warming the planet.

Gases such as co2 and methane can trap thermal energy in earth's atmosphere before radiating it into space.

