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MEDizzy
Farid_khateri
Farid_khateriover 6 years ago

What's the biggest cause of COPD in developed countries?! A.smoking B. Smoke from the burning of animal wastes

What is the biggest cause of COPD in developed countries?! A.smoking B. Smoke from the burning of animal wastes

4
Top rated comment
over 6 years ago

Developed countries: enviromental pollution and asthma

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over 6 years ago

A

over 6 years ago

A

over 6 years ago

Smoking

over 6 years ago

Smoking

over 6 years ago

Smoking

over 6 years ago

Smoking.

over 6 years ago

Smoking

over 6 years ago

A

over 6 years ago

B

over 6 years ago

A

12

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