Look at all the measurements in model 4. when a number in scientific notation is changed to expanded notation, are any of the added zeros significant

any number that is higher than zero is significant. zeros are significant if they are in between two other numbers and zeros at the end MUST be significant

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )