Compared to the Age of the Universe of About 14

question 11

Multiple Choice

Compared to the age of the Universe of about 14 billion years, the currently accepted age of Earth is about ________ years as determined by using radioactivity for dating rocks and minerals.

• A)4.6 thousand
• B)4.6 billion
• C)5.4 million
• D)13.7 billion

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Definitions:

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration, essential to the photosynthesis process in plants.

Oxygen

A chemical element vital to human respiration and the combustion process, symbolized as O.

Perfusion

The process of delivering blood to the tissues of the body, ensuring adequate oxygen and nutrient supply for cellular functions.

Diaphragm

A muscular and membranous partition separating the thoracic cavity from the abdominal cavity, playing a major role in breathing.