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Every year the number of vehicles running on the road is increasing. These vehicles release many harmful gases into the atmosphere. What effect does this have on living things

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katiebookiser
the more harmful gas released into the air the harder plants and animals have to work to breath and some gasses can cause lung disease or cancer.

Answer:

It would be B.

Explanation:

A) Plants cannot complete the process of photosynthesis.  

B) It causes respiratory disorders in humans and animals.  

C) Microorganisms thrive under these conditions and grow in number.  

D) The gases mix with rain and add more nutrients to aquatic ecosystems.

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