Question

which method of dealing with hazardous waste involves plants?
landfills
phytoremediation
surface impoundments
injection wells

Explanation:

Phytoremediation uses plants to remove, degrade, or contain hazardous waste. Landfills are sites for waste disposal. Surface impoundments are basins for liquid waste. Injection wells are for injecting waste underground. Only phytoremediation involves plants.

Answer:

phytoremediation