Written by 
27-11-2024 15:00
Asthma is a medical condition where you can have difficulty breathing. It is lifelong and doctors cannot stop it.
A study says that traffic pollution is connecting to 4 million new cases of asthma in children every year. Scientists studied this in 194 countries and 125 large cities.
Other studies also said this, but this study’s author says that this study is comprehensive. It tells where the most polluted areas in the world are.
Some people think that we need to make new rules for pollution. We should also have cleaner transportation.
Difficult words: pollution (smoke which comes from cars, planes, and ships), comprehensive (broad, big).
You can watch the original video in the Level 3 section.