Restless Earth 0.0 / 5 ? GeographyNatural hazardsA2/A-levelAQA Created by: LeanaPooleCreated on: 12-04-18 09:50 36892141075 Across 1. The continents fit together like puzzle pieces (11, 3) 4. The Earth's innermost part. It is primarily a solid ball composed of an iron–nickel alloy and some other elements. (5, 4) 5. The relatively thin part of the earth's crust which underlies the ocean basins. (7, 5) 6. Sediment that is dropped by glaciers (7, 8) 7. Lateral movement of new oceanic crust away from a mid-ocean ridge. A key process in the theory of continental drift. (3, 5, 9) 9. A change in the Earth's magnetic field resulting in the magnetic north being aligned with the geographic south, and the magnetic south being aligned with the geographic north. (8, 8) Down 2. A slab of the Earth’s lithosphere and crust (8, 5) 3. The boundary between two diverging oceanic plates. It consists of two parallel chains of submarine mountains separated by a graben, and offset in places by transform faults (3, 5, 5) 8. A liquid layer about 2,260 km thick composed of iron and nickel which lies above the Earth's solid inner core and below its mantle. (5, 4) 10. The mantle is a layer inside a terrestrial planet and some other rocky planetary bodies. (6)
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