Answer:
Northern Region's climate is classified as tropical. In winter, there is much less rainfall in Northern Region than in summer.
I think it refers to worldwide mutual dependence between nations/countries as we depend on each other for the key things like food etc. on a worldwide level.
The answer is - wind.
Wind is the most commonly used term for air movement. It is created when there's two air pressures with different values, the air that has a higher pressure always moves towards the air that has lower pressure, thus creating air movement or wind. Depending on the difference in the air pressure between the two air masses we can have winds that are very strong, standard winds, or very slow winds. The bigger the difference between the air pressures the stronger the wind is, the smaller the difference in air pressures the slower the wind is.
I believe the correct answer is D. brumby.
Koalas, wombats, and kangaroos are definitely native to Australia, but I don't think brumies are. Brumby is a type of a horse, and horses aren't native to Australia, but were rather brought and then raised there in the 18th century.