Briefly describe how solar energy can be used to purify water
What will be an ideal response?
When water poured into clear plastic containers is left in direct sunlight for 6 hours, the combination of heat and UV radiation destroys common waterborne bacteria such as those that cause cholera, typhoid, and dysentery.
Nutritional Science
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Children with measles or measles-related infections may benefit from _____ supplementation
a. vitamin C b. vitamin A c. iron d. folate e. vitamin B12
Nutritional Science
Approximately what proportion of infants who die within the first year of life die within the first month after birth?
a. 1/3 b. 2/3 c. 1/2 d. 3/4 e. 5/8
Nutritional Science
Which of the following is considered an essential amino acid?
A. Methionine B. Alanine C. Serine D. Cysteine
Nutritional Science
Which of the following vitamins have antioxidant activity?
A. E B. K C. D D. B-6
Nutritional Science