Question

which of the following are used in the production of smartphones? select the three correct answers. (2 points)
calcite

silicon

cobalt

lithium

alunite

halite

Explanation:

• Silicon: Used in semiconductor chips (like CPU, GPU) of smartphones.
• Cobalt: Essential for lithium - ion batteries (energy storage in smartphones).
• Lithium: A key component of lithium - ion batteries, providing the necessary electrochemical properties for energy storage.
• Calcite, alunite, and halite have no direct role in smartphone production.

Answer:

B. silicon, C. cobalt, D. lithium