____________________ Is the Third-Most Common Chronic Health Problem

Q57: _ is a recycling method used for

Q58: Carbon monoxide:<br>A)can cause death<br>B)is recognizable by its

Q59: The rise in the Earth's average surface

Q60: _ is a type of fungus that

Q61: _is a major health effect of secondhand

Q63: Buying products packaged in recycled material is

Q64: Scientists now say with 90 percent certainty

Q65: A CFL bulb uses _ of the

Q66: What is a major source of radon?<br>A)humidifiers<br>B)tobacco

Q67: Environmental agents that trigger changes in DNA