This Reading Comprehension worksheet is suitable for higher elementary to proficient ESL learners or native English speakers. The text describes the damage that chronic first and second-hand smoking can cause to the lungs, what is COPD (Chronic obstructive pulmonary disease) and how chronic smoking can cause to oxygen deprivation, blood clogging and increase the risk of heart attack, lung infections, pneumonia and lung cancer among others,After carefully reading the text, students are required t