We look at the process of extracting metal ores buried deep underground which is called mining, the metal ores are found in the earth’s crust in varying abundance. We look at how gold is extracted and the uses of it.
Up Next in Term 4
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Mining in South Africa
We are the world’s largest producers of various minerals. This lesson is more informative about mining and its effects. This lesson also concludes what we have learnt about the lithosphere.
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Composition of the atmosphere
The atmosphere is the layer of gases which surrounds the Earth. Air is a synonym for atmosphere, the only difference is that the composition of the atmosphere is more than air. The atmosphere is a mixture of gases that are held in a position around the Earth by the gravity of the Earth.
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Structure of the atmosphere: Troposph...
The atmosphere is composed of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere. This lesson will focus on the Troposphere and Stratosphere.
