In 1992, the immigration to Australia was higher, especially the European people, the number was increase up to 26870 and Southeast Asia to 22325. Generally, the total of the migrants to Australia in 1992 was up to 107346.

In 2002, the immigration to Australia was slow and the number of  European's  migrants
was declined to 17411. And the total of the migrants was 88876.

Comparing the migrants between 1992 and 2002, you find that the immigration in 1992 was higher than the immigration in 2002.

Task 3: ( Solar Taxi) I believe that the Solar-powered taxi was a good idea which invented by the engineer Louis Palmer. Because it was powered only by solar energy which means you can save the petrol and reduce the climate pollution,  also it is more environmentally-friendly technologies.

Task 2:( Kyoto Protocol)  In my opinion Kyoto protocol is a good model for other treaties. Because it was an international treaty and was signed by nearly all nations , also it was a good treaty to reduce greenhouse gas emissions and save the climate.