70. Define the term "particles" in the context of air or water. What is the typical size range of particles? How does this compare to individual molecules, and to the width of a human hair? 71. Describe two natural sources of particles in air, and two sources that are derived from human activities. 72. Besides advection, what are the two main ways by which particles move about? Describe how each depends on particle diameter.

70. Define the term "particles" in the context of air or water. What is the typical size range of particles? How does this compare to individual molecules, and to the width of a human hair? 71. Describe two natural sources of particles in air, and two sources that are derived from human activities. 72. Besides advection, what are the two main ways by which particles move about? Describe how each depends on particle diameter.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter2: Atoms And Molecules: The Chemical Basis Of Life

Section2.2: Chemical Reactions

Problem 3C

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