The red liquid rises when the temperature gets warmer and falls when the temperature gets colder
Cold case units/departments.
A cold case is any criminal investigation by a law enforcement agency that has not been solved for (generally) at least one year and, as a result, has been closed from further regular investigations.
Cold case units reexamine these closed cases and try to solve them.
Negatively after; positively after Hope this helped!
Answer would be b. phanerozoic