Respuesta :
Carbon dioxide levels decreased because of processes that included: dissolving in the oceans. use by plants for photosynthesis. formation of fossil fuels as plants died and their carbon compounds became locked up underground.
The maximum percentage of carbon monoxide (CO) has been reduced for newer cars as this i) will help mitigate global warming and ii) improve human health.
What is Carbon monoxide?
- Carbon monoxide is a harmful diatomic gas constituting carbon and oxygen
- Carbon monoxide has no distinct colour or smell
To identify why the limit of carbon monoxide has to be reduced, we have to understand its effects on our environment and health.
What are the impacts of carbon monoxide on the environment?
- Since carbon monoxide is produced from incomplete burning of fuel, especially in cars, a lot of this gas is made by vehicles
- This leads to air pollution where the amount of carbon monoxide increases to dangerous levels in our atmosphere
- As carbon monoxide is a greenhouse gas, it contributes to global warming.
What are the effects of carbon monoxide on human health?
- If a person breathes in carbon monoxide, these molecules bind to haemoglobin better than oxygen
- Eventually, more carbon monoxide than oxygen will be transported in their body
- This carbon monoxide poisoning is extremely fatal and may lead to death if not treated in time
Therefore, to i) reduce global warming and ii) improve human health, the upper limit of carbon monoxide percentage has been reduced for new vehicles.
Learn more about carbon monoxide here:
https://brainly.com/question/25350361
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