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3 January, 23:08

Which statements best describe how the Great Rift Valley in Africa formed? Check all that apply.

The rift valley formed when the crust pulled apart.

The rift valley formed at a divergent boundary.

The rift valley formed similarly to an island arc.

The rift valley formed at a convergent boundary.

The rift valley formed when tectonic plates separated.

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Answers (2)
  1. 3 January, 23:26
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    The answer is;

    The rift valley formed when the crust pulled apart.

    The rift valley formed at a divergent boundary.

    Divergent boundaries occur when two adjacent convection currents in the mantle are spinning in opposite directions. This causes the upper crust to stretch creating tension due to drag in different directions on the local region. The tension causes the crust to crack severally and the middle crust block dropping in comparison to flanking regions.
  2. 4 January, 02:33
    0
    Answer:1 and 2
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Home » Biology » Which statements best describe how the Great Rift Valley in Africa formed? Check all that apply. The rift valley formed when the crust pulled apart. The rift valley formed at a divergent boundary. The rift valley formed similarly to an island arc.
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