1.
the introduction of harmful substances or products into the environment.
2.
the presence of harmful substances in the environment, making it unsafe or unclean.
3.
gases gases in the atmosphere that trap heat, contributing to global warming (e.g., carbon dioxide and methane).
4.
the process of converting waste materials into new materials and objects to reduce waste.
5.
the protection and careful management of natural resources to prevent their depletion.
6.
change long-term changes in temperature, precipitation, and other atmospheric conditions on Earth, often linked to human activities.
