Pollution
Noun
UK
/pəˈluː.ʃən/
US
/pəˈluː.ʃən/
Level: Easy - A1 (Beginner)
Definition
Harmful substances that make air, water, or land dirty and unsafe, or the condition of being made dirty.
Example
"Pollution can cause serious health problems for people."
"Air pollution increases because of smoke from vehicles and factories."
"Reducing pollution helps protect nature, animals, and future generations."
Explanation
Pollution is the presence of harmful substances in the environment. It can affect air, water, and land. Pollution is often caused by factories, vehicles, plastic waste, and chemicals. Dirty air can make it hard to breathe, polluted water can harm animals and humans, and polluted land can reduce food quality. Pollution damages nature and human health, so reducing pollution is important for a cleaner and safer world.