The Two Most Abundant Elements in Earth's Crust Are __________

question 59

Multiple Choice

The two most abundant elements in Earth's crust are __________.

• A) oxygen (O) and silicon (Si)
• B) oxygen (O) and lead (Pb)
• C) silicon (Si) and nickel (Ni)
• D) lead (Pb) and nickel (Ni)

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Definitions:

Rhomboideus Group

A collection of muscles in the back that connect the spinal column to the shoulder blades, aiding in the movement and stabilization of the scapula.

Deltoid Group

A muscle group responsible for lifting the arm and giving the shoulder its range of motion.

Trapezius Group

A major muscle group in the back that extends from the neck to the middle of the spine and out to the shoulder, involved in moving, rotating, and stabilizing the scapula.

Incision

A cut made through the skin and tissue during surgery, usually made with a scalpel or other sharp instrument.