Answer :
Option A. The process is highly energy intensive.
Extraction of aluminium is tough because pure aluminium oxide melts at 2050°C most effectively. So a big amount of energy is wanted to keep this high temperature. ii a good amount of the aluminium vaporises at this temperature. iii Fused alumina does not conduct strength nicely.
Aluminium is the maximum plentiful metallic in the world however, it would not come in its natural shape. It has to be extracted from its ore, referred to as bauxite. The technique of extracting aluminium is useful and resource-intensive, which makes aluminium many of the maximum costly metals to produce.
Aluminium is commonly extracted from the deposits of bauxite, hematite, and magnetite. those bauxite deposits specifically arise in tropical regions which in the main encompass the coastal regions where the rock layers are typically intermixed with clay minerals, titanium dioxide, and iron oxides. these bauxite deposits are constituted of about 20% of Aluminium and in order to reap this Aluminium from those bauxite deposits, a large amount of energy is required and it is a totally high-priced process.
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Which of the following is the cost of mining aluminium from new bauxite
deposits?
A. The process is highly energy intensive
B. It helps preserve animals in the rainforest.
C. It takes less energy to transport the lightweight metal
D. The metal can be recycled again over again
