Marlene wakes up early in the morning and her room is fairly dark. She looks over and sees her shirt hanging on a hook. She knows it's her red shirt because she hung it up there before she went to bed, but in the dark she cannot see its color. It looks dark gray to her. Why is that?

 Cones in eyes are ineffectual in dim light

Explanation:

Cones are photoreceptor cells of eye that provide different response towards varying wavelength of light .They can effectively function in bright light and provide color vision of things.They tend to become ineffective in dim light or darkness as photoreception becomes improper.

According to the question, Marlene's shirt is looking dark grey in color in darkness rather than red(actual color in brightness) because cones of eyes have become ineffective in darkness

both the house and senate must approve the conference report.   after it is approved by both on an identical from, it will be sent to the president.   if the president approves it, it will become law.

glass wants to live in a world of super heroes and villains. he have lived all his life trying to be responsible for the creating the origin story of a super hero; he schemed and caused many incidents (many of them fatal) hoping that someday someone with superpowers would show up and save the day.

he knew himself very much. he saw himself as a villain of a real-life super hero story. he was aware of his strengths (more than smart enough for being manipulative and scheming) and weaknesses (having fragile bones and having to rely on his mind to succeed).