After Hydrogen and Oxygen the Most Abundant Substances in Seawater

question 137

Short Answer

After hydrogen and oxygen the most abundant substances in seawater are ________ and chlorine.

---

Definitions:

Sympathetic System

Part of the autonomic nervous system that prepares the body for action and is often associated with the fight-or-flight response.

Innervated

Supplied with nerves; often refers to how certain body parts receive nerve signals from the brain or spinal cord.

Abdominal Obesity

The accumulation of excess fat around the stomach and abdomen, posing significant health risks.

Catecholamines

Organic compounds that play a critical role as hormones or neurotransmitters in the body's stress response and help regulate heart rate, blood pressure, and blood sugar levels.