This mathematical model describes th changes that occur in a sample of water as its temperature increases use this model to predict what will happen to the motion of the molecules in a sample of water that is being heated from 50 degrees to 100 degrees c.

a. the movement of the molecules will gradually increase.
b. the movement of the molecules will gradually decrease.
c. the motion will change very little.
d. the molecules will stop moving.

my answer is definitely B or A

d

explanation:

i think that this is the best answer, but im sorry if this is wrong

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.