What Is the Most Abundant Element on the Earth (Including

question 29

Multiple Choice

What is the most abundant element on the earth (including the crust,oceans,and atmosphere) ?

• A) silicon
• B) oxygen
• C) hydrogen
• D) carbon
• E) iron

---

Definitions:

Resistance

In psychology, resistance refers to the opposition or pushback against external demands, changes, or therapy progress, often arising from unconscious defenses.

GAS

General Adaptation Syndrome, a theory describing the body's short-term and long-term responses to stress.

Norepinephrine

A neurotransmitter and hormone associated with the body's fight-or-flight response, playing roles in attention, emotions, sleeping, dreaming, and learning.

Epinephrine

A hormone and neurotransmitter also known as adrenaline, involved in regulating heart rate, blood vessel and air passage diameters, and metabolic shifts; it plays a key role in the fight-or-flight response.