The rapid movement of gases molecules can be explained because gases have size particles and exert attraction for other gas particles.
a) small, great
b) large, great
c) large, little
d) small, little

The rapid movement of gases molecules can be explained because gases have SMALL size particles and exert LITTLE attraction for other gas particles.

Explanation:

As we know that gas molecules move very fast and they will have very small attraction towards each other

So here we can say that the attraction force on the gas molecules is very weak and hence the motion of the molecules is random and it will move at fast speed.

So the interaction between the molecules is very weak and all molecules will move in random directions with high speed.

So it is given as

D)small, little

c)as speed changes, wavelength and frequency change.

everything changes!

think its the third option