If the number of trees on the planet suddenly decreased, what might happen to the level of oxygen in the atmosphere?

the carbon dioxide would increase

Explanation:

C) various sound effects can be used to create or enhance the mood.

Explanation: In the given scene from "Trifles" we can see a conversation between Mrs. Peters an a County Attorney while they are in her kitchen. Reading a scene silently can have many advantages, like, for example, we can give the characters the voices that we like and sometimes even the tone that they are speaking with. But, in this case, hearing the scene would have also advantage, like the use of sound effects to create or enhance the mood.