2. Chapter: Water Table of Contents Section 3: Recycling Water Section 1: The Nature of Water Section 2: Why is water necessary?
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22. Section Check 2 Question 1 What percentage of the human body is composed of water? A. 23% B. 55% C. 70% D. 90% NC: 3.08
23. Section Check 2 Answer The human body is composed of 70% water. NC: 3.08
24. Section Check 2 Answer Water is used in industry, irrigation, transportation, and recreation. Question 2 List some examples of why water is essential on Earth.
25. Section Check 2 Question 3 Which uses the most water? NC: 3.07
26. Section Check 2 A. agriculture B. electricity generation C. manufacturing and minerals D. residential and business NC: 3.07
27. Section Check 2 Answer Agriculture uses the most water because farmers have to use water to grow crops. NC: 3.07
