Kara is writing a science-fiction story. In the story, Earth no longer experiences day and night. To return Earth to normal, which action should the heroine of the story take?

She should get the Sun to travel around Earth again.
She should make Earth start moving around the Sun.
She should get Earth spinning on its axis again.
She should get the shape of Earth’s orbit back to normal.

In the 1950s, christian anfinsen demonstrated the renaturation of the protein ribonuclease (rnase) in vitro. after reduction (to reduce the disulfide links) and the addition of urea (to denature the protein), the protein was in an unfolded state. after removing the urea and the reducing agent, the protein refolded, with greater than 90% activity. if the urea were removed after oxidation occurred, the protein had less than 5% activity. why would the protein not refold correctly if the urea were removed after the reducing agent was removed? (in other words, what would happen if the urea were removed after oxidation? )