Explain how air temperature, barometric pressure, humidity, wind speed and direction, and precipitation determine the weather in a particular place and time. i don't really understand how to explain may anyone me understand? : )

Which is not a standard weather variable? a. air pressure b. moon phase c. temperature d. wind speed

Since 1980, which three countries have either attacked or been attacked by iraq? a. iran, turkey, united states b. iran, israel, jordan c. iran, kuwait, united states d. iran, saudi arabia, egypt

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted