Why might someone observe just one peak when there are actually two different dyes present?

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?

The american public was excited by the invention of the railroad system. true false

(needed) if you have read the anne frank "the diary of a young girl" book then i may need your . i need you to do a full, accurate book review that would make up for 10 powerpoint slides. the review will include a full summary of each part. will mark brainliest