Question

the cross section below represents the oceanic crust found on both sides of the mid - atlantic ridge. samples of crust were collected at points x, y, and z shown on the diagram. which sequence correctly lists the crust samples from youngest to oldest? choose 1 answer: y→x→z y→z→x z→x→y

Explanation:

The Mid - Atlantic Ridge is a divergent plate boundary. New oceanic crust is formed at the ridge (point Y). As the plates move apart, the crust moves away from the ridge. The farther the crust is from the ridge, the older it is. Point X is 40 km from the ridge, and point Z is 80 km from the ridge. So, the order from youngest to oldest is Y (at the ridge, newly formed) → X (40 km away) → Z (80 km away).

Answer:

A. \( Y
ightarrow X
ightarrow Z \)