If a boat sails at 12 miles per hour for one day, how many nautical miles does it travel

This scenario is called diffusion. particles are moving from regions of high concentration to low concentration.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

The answer is b because c don't explain why the moths are on them and it isn't a because as we know only one species of moth does this

Isec i will do it and them i will let you know