No, a long as a dairy cow has been pregnant once, the cow will continue producing milk as long as it is continually milked whether it is currently pregnant or not
Among the gases mentioned if the list of options, nitrogen, oxygen,
methane and water vapor, water vapor has the greatest effect on the
weather conditions. The reason is that the humidity of the gases can
change considerable and given that H2O molecules will replace (or be
replace by) N2 and O2 molecules, and due to the difference in the molar
masses of H2O and the other two gases, the molar mass of the mixture
(air) will change considerably and this will cause changes in the
atmosphere pressure.
Atherosclerosis is what its called
I don't know if this is a personal question or not but if it is I would go to your school counselor
also tell your mom that there are schools that are online and you still go to a campus. If you live in Fresno there is a school named JE Young that is really good
and I'm here for you if you ever need to talk