Question

The second most abundant element in the earth's crust. It is the principal component of sand and quartz and finds use in solar cells, computer chips, caulking materials, and abrasives.

a. Silicon
b. Aluminum
c. Iron
d. Titanium

Answer 1

Silicon is the second most abundant element in the earth's crust and has various uses in different industries.

Step-by-step explanation:

The second most abundant element in the earth's crust is silicon. It is the principal component of sand, quartz, and many minerals found in rocks, soil, and clays. Silicon is used in various applications such as solar cells, computer chips, caulking materials, and abrasives.