An example of an analytical expository essay prompt and response in English might be:

Prompt: Analyze the causes and effects of air pollution in major cities around the world.

Response:

Air pollution is a major problem in many cities around the world, with harmful effects on human health and the environment. There are several causes of air pollution in cities, including the burning of fossil fuels by vehicles, factories, and power plants, as well as the release of gases and particles from various sources such as agriculture and waste disposal.

One of the main causes of air pollution in cities is the high volume of vehicles on the roads. The burning of fossil fuels such as gasoline and diesel releases harmful gases and particulate matter into the air, which can cause respiratory problems and other health issues in humans. In addition, the construction and operation of roads and highways can contribute to air pollution through the release of dust and other particles.

Another major cause of air pollution in cities is the presence of industrial facilities, such as factories and power plants. These facilities often release large amounts of gases and particles into the air, which can have serious health impacts on nearby residents. In addition, the use of fossil fuels by these facilities contributes to climate change, which is another major environmental concern.

The effects of air pollution on human health can be severe, including respiratory problems, heart disease, and cancer. Exposure to air pollution can also have negative effects on the environment, such as damage to forests and other ecosystems. Additionally, air pollution can lead to the formation of ground-level ozone, which can damage crops and other vegetation.

Overall, the causes and effects of air pollution in cities are complex and interconnected, but it is clear that action must be taken to reduce the harmful impacts of this problem. This may include measures such as regulating emissions from vehicles and industrial facilities, promoting the use of clean energy sources, and implementing policies to reduce air pollution and protect public health.