Water is purified through SODIS by leaving water in the sun, in clear plastic containers, for at least ________ hours
A) 4 B) 7 C) 5 D) 6
D
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Most teens consume enough fruits and vegetables
Indicate whether the statement is true or false
Substances that the body requires for normal growth and health and that must be obtained from the diet because the body cannot manufacture sufficient amounts are called ____
A) nonessential nutrients B) essential nutrients C) phytochemicals D) allergens
There is energy in substances such as carbohydrates and fat. The energy in these molecules is actually due to:
a. the energy released when carbon atoms are completely burned up. b. the energy released when bonds holding the atoms together are broken and reformed. c. the energy released when protons and neutrons are fused. d. the energy released when protons and neutrons are split.
Why is the effect of diet on behavior difficult to study?
a. Diet cannot influence behavior. b. Many factors in addition to diet influence behavior. c. Subjects' food intakes are difficult to analyze. d. There is little interest in these effects among the public.