Recycling has a positive impact on the environment.
Alternatively, through reuse and recycling, waste can be converted into useful products.
Converting waste into useful products has a positive impact on the environment.
What has a positive impact on the environment?

[a] Environmental ignorance.
[b] Impact sports.
[c] Ignoring waste.
[d] water conservation
[e] transportation technology
[f] peachleaf willow
[g] Converting waste.
[h] Green beans