What happens if you double the number of batteries used in a circuit? (assume all of the batteries are the same.) does the voltage in crease? does the current increase? or both?

Atemperature inversion can cause a warm air mass to move over a colder air mass. this traps the colder air mass and prevents surface air from rising. this may result in which of these? a) smog b) acid rain c) freezing rain d) a thunderstorm