Question

place the descriptions in the correct categories.

rift valleys

plates pulling apart

magma breaks through crust

subduction

volcanic mountains

island arc

magma flows from cracks

mid - ocean ridges

Explanation:

• At Convergent Boundaries: Subduction occurs when one tectonic plate is forced under another. This process can lead to the formation of volcanic mountains (as magma is generated due to the melting of the subducting plate) and island arcs (chains of islands formed from volcanic activity associated with subduction).
• At Divergent Boundaries: Plates pulling apart creates space. Magma breaks through the crust (as the pressure is reduced when plates separate, allowing magma to rise). Magma flows from cracks (as the plates move apart, magma fills the gap). Mid - ocean ridges are formed at divergent boundaries in the ocean (where new oceanic crust is created). Rift valleys can also form on land at divergent boundaries (as the crust is stretched and pulled apart).

Answer:

• At Convergent Boundaries: subduction, volcanic mountains, island arc
• At Divergent Boundaries: rift valleys, plates pulling apart, magma breaks through crust, magma flows from cracks, mid - ocean ridges