Sediment; There is a source of heat that was not included in the question to create all the other choices.
Building new incinerators is an action which could help a city reduce landfill waste and is denoted as option B.
<h3>What is Incineration?</h3>
This is a method used to treat and involves burning the wastes in special structures referred to as incinerators.
Incineration and recycling are the main methods which help reduce landfill waste.
Read more about Incineration here brainly.com/question/7827666
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