Talk about the causes and effects of a pollution tupe:

Air pollution is a major change in the composition of the atmosphere, mainly from smoke, dust, soot and much more. They are not clean, it is a smell coming, reduced visibility, caused climate change, pathogenic for humans and creatures.

Air pollution caused more than 3 million people die prematurely every year, it threatens virtually all of the big city dwellers in the developing countries. This leads to the risk of stroke, heart disease, lung cancer and a variety of respiratory problems.

Talk about a common natural disaster in your contry:

Today, in Vietnam often encountered many natural disasters such as floods, droughts, hail, tropical storms and other natural disasters. Tropical storms often occur and cause most harm. It usually occurs in the rainy season and occurs most often in central Vietnam and coastal areas. It causes a lot of damage to people and property. First, killing people, ruin by the flood. Second, crop loss due to flooding. Humans become homeless and lose all their possessions and taking damage. To prevent and fight against tropical storms, before it takes place, we must prepare adequate tools and food and other necessities. When storms occur, people must find safe shelters not to go out. After that, we have to overcome what hurricanes destroy, such as rebuilding houses, and many other things. (If we live in that area, we should plant trees, protect the environment and many other practical things.)