One winter, something unusual happened in London. What started as a normal day soon became one of the most serious events in history. Read the text carefully. For each question, choose the correct answer based on the information in the text. 
 
In December 1952, the city of London experienced one of the most serious environmental disasters in history, known as the Great Smog of London.
At that time, London was a busy industrial city. Most homes were heated by burning coal, a type of fossil fuel, and many factories also used coal to produce goods. In addition, large power stations burned coal to create energy for the city. As a result, huge amounts of smoke and harmful greenhouse gases were released into the air every day.
Normally, pollution would slowly move away with the wind. However, during that week in December, the weather conditions were very unusual. A period of cold weather led people to burn even more fuel to heat their homes. At the same time, there was almost no wind, and a layer of warm air formed above the city. This trapped the cold, polluted air close to the ground.
Within a short time, a thick, dark fog covered the city. This was not ordinary fog – it was a mixture of smoke and natural fog, often called “smog”. Visibility became extremely poor. In some places, people could not see more than a few metres in front of them. Public transport was affected, and buses and trains stopped running. Even indoor events, such as concerts and cinema screenings, were cancelled because the air inside buildings was also polluted.
The situation quickly became a serious emergency. Hospitals filled with patients suffering from breathing problems. Doctors reported an increase in illnesses, especially among children, older people, and those who already had health conditions. It is now estimated that around 4,000 people died during the smog, and many more were affected in the following weeks.
At the time, people did not fully understand the long-term effects of air pollution or the role of the greenhouse effect in changing the environment. However, the disaster made it clear that pollution from burning fuel could have immediate and dangerous consequences.
Another problem during this period was the condition of the city itself. Coal use produced large amounts of black dust, which settled on buildings, streets, and even inside homes. In many areas, the level of dirt and filth increased, and waste was more difficult to manage. Although rubbish collection continued, conditions made it harder to keep the city clean.
After the disaster, the British government began to take action. In the years that followed, new laws were introduced to reduce pollution. One important step was limiting the use of coal in cities and encouraging cleaner forms of energy. People were also encouraged to change their habits, including reducing unnecessary fuel use and improving waste management practices such as recycling.
Over time, these changes led to cleaner air and healthier living conditions. The Great Smog became a turning point in environmental awareness, not only in the United Kingdom but around the world. It showed that human activity can seriously affect the planet, but also that governments and individuals can work together to create positive change.
Today, the event is often studied as an important example of how environmental problems develop and how they can be addressed. It remains a powerful reminder that protecting the environment is essential for public health and the future of life on Earth.
 
1. Why did people burn more fuel during that period?
2. Why was the situation considered a serious emergency?
3. What additional problem is mentioned besides air pollution?
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