What Is the Ratio of the Number of Oxygen to Nitrogen

question 107

Multiple Choice

What is the ratio of the number of oxygen to nitrogen molecules in Earth's lower atmosphere?

• A) 1 oxygen molecule to every 4 nitrogen molecules
• B) 4 oxygen molecules to every 1 nitrogen molecule
• C) equal numbers of oxygen and nitrogen molecules
• D) only 1 oxygen molecule to every 100 nitrogen molecules, or about 1%

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Definitions:

Cva

Cerebrovascular Accident, commonly known as a stroke, occurs when the blood supply to part of the brain is interrupted or reduced.

Meaning

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Amyotrophic Lateral Sclerosis

A progressive neurodegenerative disease affecting nerve cells in the brain and spinal cord, leading to loss of muscle control.

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