It is a Convergent Boundary
I’m pretty sure the mature river is the bottom one, the old river is the middle and the young is the top. Hope I’m helpful..
Answer:
mainly Southern Ocean
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According to the Hubble law the more distant galaxies, the greater apparent recessional velocity. The Hubble law states that as the distance to galaxies increases, the apparent recessional velocity increases. The main equation is: <span>Recessional Velocity = </span>Hubble's constant<span> times distance</span><span>.</span>