Which of the following was not a feature of John Dalton's atomic research? a-mass ratios of elements involved in chemical reactions
b-experiments that refined and supported his hypothesis
c-careful observations and measurements
d-discovery of the atom's internal structure

If the water vapor content stays the same and the temperature drops, then the relative humidity increases. its vise versa.if the water vapor content stats the same and the temperature rises, the relative humidity decreases. so, yes, i'd say that temperature and humidity have a strong relationship.

It’s the energy source of stars

It shows that the experiment is designed properly.