Which of the following help(s) improve bone density?
A) dietary calcium
B) vitamin D
C) weight-bearing exercise
D) All of the answers are correct.
Answer: D
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Which of the following is true regarding U.S. water systems?
A. No Americans have died from contaminated water in the last 10 years. B. Hazardous chemicals from manufacturing do not infiltrate water systems in the United States. C. In most areas of the United States, water systems supply adequate, dependable, and safe water. D. Water shortages are not a concern in the United States.
Write 4/35 as a percent. Write the remainder (if there is a remainder) in fractional form.
A) 3/7 % B) 12 3/7 % C) 11 3/7 % D) 8 3/35 % E) 35/4 %
Extension tasks attempt to:
A. manipulate the level of difficulty and complexity of performance. B. evaluate level of performance of students. C. provide self-testing experiences. D. qualitatively improve performance.
Tobacco use and exposure to secondhand smoke present the biggest carcinogenic hazard in the environment
Indicate whether the statement is true or false