Sarah would like to write a newspaper editorial about the effects of sun exposure. What long-term effects should she include? Check all that apply.skin cancerwrinklesvitamin D exposureskin discolorationsagging skina healthy glow
In 1976, the average blood lead level was about µg/dL. The amount of lead used in a 6-month period in 1978 was about 103 tons.
The region with the highest number of deaths due to air pollution is . About 5.5 million people died as a result of air pollution in .
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