Answer:
This effect is caused by increased levels of carbon dioxide, chlorofluorocarbons and other gases in the air, many of them released by human activity. greenhouse effect The warming of Earth's atmosphere due to the buildup of heat-trapping gases, such as carbon dioxide and methane.
Explanation:
What are you asking? Id love to help but cant without proper information
D as it only has a negative effect when being used and it is small at that anyway.
The key is a process called <span>pasteurization</span>