Respuesta :
Answer:
A) heating and air conditioning systems
Explanation:
I say A because the rest of the choice are promoting good ways to decrease global warming, and if you don't have as many harmful gases in the air you wont have them in your building.
e2021
Heating and air-conditioning systems increase indoor air pollution.
Heating and air conditioning systems use a large amount of energy, electricity production increased, which emits more carbon dioxide into the atmosphere.
What is indoor air pollution?
- It is the dust, dirt, or gases in the air inside buildings such as home or workplace that could be harmful to breath in.
- Poor quality has been linked to lung disease like asthma etc.
Hence , A) option is the correct answer.
To know more about pollution here
https://brainly.com/question/23857736
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