Answer:
a. positive ion , +1
b. negative ion , -1
c. ionic
9. NaCl, NaBr , NaF
Explanation:
sorry i'm in a rush i couldn't do the rest but use the internet
Answer:
PVR is calculated by the formulae: 
Explanation:
Pulmonary vascular resistance may be defined as the resistance to blood through the pulmonary circulation.
PVR can be determined by the following formula:
Here, PAP is the pulmonary artery pressure, PAOP is pulmonary artery occlusion pressure and CO is cardiac output.
Answer:
c. a ball rolling from point A to point B
Explanation:
a is talking about the position of the train
b is talking about the length of the track
d is talking about the distance a student is from somewhere.
So from taking all these options out we are left with C because the ball is actually moving and when something moves it is in motion.
CC.) is your answer ! I hope this helps and gl on the test (;
