Cross-trial immigration

Australia is the only continent in the world surrounded by the sea, with a land area of 7.68 million square kilometers. Australia has a vast territory and its climate includes tropical grassland climate, subtropical grassland climate, tropical desert climate, tropical rain forest climate, subtropical humid climate, temperate maritime climate and Mediterranean climate. Eastern and southeastern Australia has the best climate and the largest population. Industry, agriculture, commerce, animal husbandry, tourism, minerals and cattle raising are the most developed, and the northern and southern coasts are also very good.

As the smallest continent in the world, although the area of Australia is only 7.69 million square kilometers, it has almost all low-latitude climate types, including tropical desert climate. In addition to the tropical desert climate zone in the central and western regions, there is a wider tropical grassland climate zone in the west of the Great Divide, as well as the Mediterranean climate zone in the southwest corner and the east of Tai O Bay. However, to the east of the great watershed, there are tropical rain forest climate zone, subtropical humid climate zone and temperate maritime climate zone from north to south according to the zonal distribution law.

Although Australia has a huge area and ranks sixth in the world, without the intervention of modern science and technology, the area suitable for the development of agriculture and animal husbandry in Australia is actually less than 300,000 square kilometers. In Australia, more than 90% of the Australian population lives in the humid areas along the southeast coast and southwest corner, which are also the focus of the Australian economy. In contrast, the vast arid inland areas are sparsely populated, and many places are even deserted.

The geographical position of (1) is generally expressed in three aspects: absolute position, relative position and land and sea position. Australia is located in the Eastern Hemisphere and the Southern Hemisphere, bordering the Pacific Ocean in the east and the Indian Ocean in the west and south. It is the only country in the world that monopolizes a continent.

(2) Climate influencing factors can generally be analyzed from the aspects of atmospheric circulation, topography and ocean currents. The tropic of Capricorn runs through central Australia, which makes most parts of the country affected by subtropical high, prevailing downward flow and little precipitation; To the east is the great watershed, which blocks the water vapor brought by the southeast trade wind area; The western region is affected by cold current dehumidification, and precipitation is scarce.

(3) "Riding on a sheep's back" means that Australia's animal husbandry is developed, sheep farming is an important production department, and it is an important wool producer and exporter in the world; "Riding on a mine car" shows that the country is rich in mineral resources, and the mining industry is the main industrial sector.

(4) It is not difficult to see from the picture that Australia's cities and population are concentrated in the southeast coast. This is mainly related to the advantages of climate, topography and traffic conditions in the southeast coast.

(5) Australia's residents are mainly British immigrants from Europe, so its culture is deeply influenced by Western Europe, especially Britain.