Big assignment please help. Will do anything

What can be the use of smoke transformed into liquid?

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure