It would be perfectly fine to give your niece a summer dress as a present, many companies that sell them can be found via the internet and there is a wide variety.

Your dog will survive perfectly well indoors without the air-conditioner on - regardless of whether it's winter or summer ! Air-con units are the biggest waste of energy on this planet !

Christmas in Australia occurs in December, just as it does wherever Christmas is celebrated in the world. While it may seem strange that Australia has its Christmas in summer, it is perfectly normal for Australians.

it is perfectly inelastic