Spongein is a streaming service that offers a wide variety of education based shows. These include lessons like to Mathematics, Physics, Life Science, Zulu, English, IT and lots more subjects, as well as masterclasses delivered by various industry experts.
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.
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.