Question

we can combat noise pollution in a variety of ways. some examples of this are designing buildings that can absorb sound and well-planned landscapes. what is another way we can combat noise pollution? removing all trees walls along freeways

Explanation:

To combat noise pollution, we need methods that reduce or block sound. Removing all trees would likely increase noise as trees help absorb sound. Walls along freeways (noise barriers) are designed to block or reflect traffic noise, reducing its spread.

Answer:

B. Walls along freeways