what sits on top of th asthenosphere?

rocks in the upper mantle which are solid

iron and nickel that generate heat

what happens to silicate rocks due to heat and pressure?

the silicate rocks are in a thick liquid state and so can flow and become denser with depth

the silicate rocks are in a thick liquid state and so can flow and become less denser with depth

Quiz

steph_narciso 14 questions

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1The widest section of the earth is
1. A2900km
2. B2850km
2what sits on top of th asthenosphere?
1. Arocks in the upper mantle which are solid
2. Biron and nickel that generate heat
3what is liquid and usually at the junctions of....allowing it to flow
1. Acrystalks
2. Bmantle
4what happens to silicate rocks due to heat and pressure?
1. Athe silicate rocks are in a thick liquid state and so can flow and become denser with depth
2. Bthe silicate rocks are in a thick liquid state and so can flow and become less denser with depth
5how hot the the core?
1. A4000-6000
2. B5000-6000
6hw many times denser is the core than the crust?
1. A2x
2. B4x
7what is the radius of the core?
1. A1100km
2. B1200km
8what creates convection currents?
1. Athe heat in the core
2. Bthe mantle
9what creates convection currents?
1. Athe heat in the core
2. Bthe mantle
10what creates convection currents?
1. Athe heat in the core
2. Bthe mantle

Description: A2 GEOGRAPHY Quiz on The mantle and core, created by steph_narciso on 07/03/2014.
Author: steph_narciso
Language: English
Views: 77
Tags: geography geography a2
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