Correct Answer: C. Cleaner air means healthier people. Researchers are linking heart attacks, asthma and even an increased risk of stroke with air pollution. So be a good neighbor and plant a tree today!

Correct Answer: C. Cleaner air means healthier people. Researchers are linking heart attacks, asthma and even an increased risk of stroke with air pollution. So be a good neighbor and plant a tree today!

Correct Answer: C. Cleaner air means healthier people. Researchers are linking heart attacks, asthma and even an increased risk of stroke with air pollution. So be a good neighbor and plant a tree today!

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