Oceans Are About Four Times as Deep as Mountains Are

question 10

Multiple Choice

Oceans are about four times as deep as mountains are high. At the bottom of the ocean are

• A)huge towering mountains, deep valleys, and deep ocean trenches near the continental borders.
• B)thick oceanic crust at the ocean ridges that gradually thins as it nears the deep ocean trenches.
• C)towering plutonic mountains created from volcanoes and fissure eruptions at the oceanic trench areas.
• D)all of the above

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Definitions:

Atrial Fibrillation

A quivering or irregular heartbeat (arrhythmia) that can lead to blood clots, stroke, heart failure, and other heart-related complications.

Transient Ischemic Attack

Often called a mini-stroke, it's a brief episode of neurological dysfunction caused by loss of blood flow to the brain, spinal cord, or retina, without lasting damage.

Acute Myocardial Infarction

A medical condition that occurs when blood flow to the heart is severely reduced or stopped, leading to heart muscle damage, commonly known as a heart attack.

Angina Pectoris

Chest pain or discomfort due to coronary heart disease, caused by reduced blood flow to the heart muscle.