Landfills have a negative impact on the environment.
Most municipal trash is disposed of in such landfills.
Most municipal trash has a negative impact on the environment.
What mostly has a negative effect on the environment?
Options:
[a] pure water
[b] deforestation
[c] animals
[d] cigarettes
[e] municipal trash
[f] pure oxygen
[g] smoking tobacco
[h] chlorofluorocarbons