Прочитайте текст. Определите, какие из приведённых утверждений подходят содержанию

Прочитайте текст. Обусловьте, какие из приведённых утверждений подходят содержанию текста (1 True), какие не подходят (2 False) и о чём в тексте не сказано, то есть на основании текста нельзя дать ни положительного, ни отрицательного ответа (3 Not stated). Australia is very rich in natural resources. It has large supplies of coal and natural gas, uranium, nickel, zinc and gold. Australians also mine for precious stones like sapphires and topaz, and they are very proud of their famous opals. Opal looks like a mineral but its not because minerals consist of crystals but opal has a non-crystal nature. Australia produces about 97% of the worlds opals and supplies other countries with it. In 1994, opal was declared Australia's National Gemstone. Opals look really beautiful. They can be clear, milky white, blue, green, red, yellow, black and other colours. Opals often look multi-coloured as they reflect light and can be practically every colour we can see. In the Middle Ages, opal was considered to be a stone that could provide great luck. People believed that it had all the power of the stones whose color was represented in the color spectrum of the opal. Opals are mined in different parts of Australia. However, the largest and most productive opal field is in South Australia in a place called Coober Pedy, a small mining town in the desert. The world's largest and most valuable gem opal, "Olympic Australis", was found there in August 1956. The huge opal weighs 3450 grams! The name Coober Pedy can be translated from the local aboriginal dialect as white man in a hole. And that was true in the beginning of the twentieth century first white people appeared in that place. They were opal miners. They dug holes in the earth and lived there. Coober Pedy is a very tough place it is very hot and dusty in the daytime in summer and freezing cold at night in winter. To survive through the heat and cold, opal miners built their houses underground. Nowadays, many people in Coober Pedy still prefer to live underground. Opal mines and Coober Pedy are popular with tourists. People from all over the world come and stay in the underground hotels there. Australia has more opals than any other country in the world. 1) True 2) False 3) Not stated In the past, people used opals in medicine. 1) True 2) False 3) Not stated Opal miners appeared in Cooper Pedy in 1956. 1) True 2) False 3) Not stated The severe climate prevents tourists from visiting Coober Pedy. 1) True 2) False 3) Not stated