What is a possible effect of replacing batteries?

Metonymy is best defined as a figure of speech in which

Which sentence uses the simple present tense of sleep? mr. ford sleeping on a feather mattress in his apartment. mr. ford will sleep on a feather mattress in his apartment. mr. ford sleeps on a feather mattress in his apartment. mr. ford slept on a feather mattress in his apartment.

Whos a good poet to listen to? i got back into shane koyczan and i'm wondering if anything else is out there.