Fact 1: Landfills have a negative impact on the environment. Fact 2: Life affects environment, environment affects life. Given the two facts above, landfills have a negative impact on what?

Choose from:
[a]. Life.
[b]. Clouds.
[c]. plants.
[d]. Earth.
[e]. Fuel.
[f]. biome.
[g]. humans.
[h]. Sunshine.
Answer:
[a].