On a Planetary Scale, the Ocean Comprises About ________ of the Earth's

question 45

Multiple Choice

On a planetary scale, the ocean comprises about ________ of the Earth's mass.

• A) 8%
• B) 71%
• C) 20%
• D)0.02%

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Definitions:

Visceral Pericardium

The inner layer of the pericardium that closely envelopes the heart.

Epicardium

The outermost layer of the heart wall, also known as visceral pericardium, which provides lubrication and protection to the heart.

Endocardium

The innermost layer of tissue that lines the chambers and valves of the heart, providing protection and contributing to heart function.

Bicuspid Valve

Also known as the mitral valve, it is a heart valve that controls the flow of blood between the left atrium and the left ventricle.