The industrious Chinese people feed 22% of the world's population with 7% of the world's arable land It must be the meaning of percentage!

The industrious Chinese people feed 22% of the world's population with 7% of the world's arable land It must be the meaning of percentage!

1:3

Material 2: China's total cultivated land area is about 1.8 billion mu, accounting for about 7% of the world's cultivated land area. China has a population of 1.3 billion, including 650 million farmers. China's population accounts for about 20% of the world's population. Australia's total cultivated land area is about 700 million mu, accounting for about 3% of the world's cultivated land area. Australia has 21 million people, accounting for 0.3% of the world's population, There are 100000 farmers among them. The food produced by Chinese farmers is enough to support Chinese people, while the food produced by Australian farmers can support 70 million people. (1) one farmer in Australia can support people, and one farmer in China can support people. To support one person in Australia, it takes one mu of arable land, China needs one mu of arable land to support a person (with 2 decimal places). What do these data show? A: (2) according to the production level and mode of Australia, it needs one hundred million mu of arable land to support the Chinese people. Why can't China copy the Australian model to develop China's agriculture? A: (3) according to the viewpoint of scientific development, Combined with the data of material 2 and questions (1) and (2), please put forward three reasonable suggestions for China's agricultural development

China's farming is unscientific, mechanical and unreasonable

Xiaoming said: "Asia accounts for 30% of the world's land area and 61% of the world's population, both of which are the largest in the world
First of all, we should be proud of having the best of two worlds

I don't agree with him, because the proportion of population is more than the proportion of area, which shows that the population density in Asia is too large, which is not conducive to economic development

The per capita area of cultivated land in China is about 0.1 hectare
Grade 5 sprint 100 points!
The population of Japan is only one tenth of that of China. The per capita cultivated land area of Japan is about () hectares, which is () times that of China?
Added to the back!

130 million or 130 million