On an Ordinary Day, a Volume of Air About the Size

question 82

Multiple Choice

On an ordinary day, a volume of air about the size of your index finger contains between ____ and ____ particles.

• A)1; 150
• B)10; 1,500
• C)100; 15,000
• D)1,000; 150,000
• E)10,000; 1,500,000

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Definitions:

Substance

The fundamental physical matter or material that makes up an object or individual.

Digestive System

A group of organs and glands responsible for the breakdown of food into nutrients, which the body uses for energy, growth, and repair.

Endoderm

One of the three primary germ layers in the early embryo that develops into the interior linings of the digestive system and the respiratory system.

Cells

The basic structural, functional, and biological units of all known living organisms, acting as the building blocks of life.