What is the outward force on the cell wall of a plant that results from water contained within the cell?

Select all the true statements about the cosmic microwave background radiation

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d

Can yall plz me on this question im having a hard time think about it