If You Were to Measure the Composition of the Atmosphere

question 19

Multiple Choice

If you were to measure the composition of the atmosphere across the globe, the composition would be relatively constant except for

• A) nitrogen and oxygen.
• B) oxygen and helium.
• C) helium and carbon dioxide.
• D) carbon dioxide and water vapor.
• E) water vapor and ozone.

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Definitions:

Ventricles

Chambers within the heart or brain that have specific functions, such as pumping blood in the case of the heart or storing cerebrospinal fluid in the case of the brain.

Circuit

An electrical circuit is a path in which electrons from a voltage or current source flow.

Widening

The process of making something broader or more expansive in size, scope, or extent.

Blood Pressure

The force that circulating blood exerts against the walls of blood vessels.