2. Which of the following is likely to harm an ecosystem?

 All living things need clean water to survive

Which of the following does NOT cause water pollution?

The 3Rs we need to remember are:

There is nothing we can do to stop water pollution

Water pollution does not affect marine life

Which of the following is the most dangerous material that causes water pollution?

Is plastic harming sea creatures?

What is the most common item polluting the ocean?

Litter, sewage and waste from factories are forms of pollution

Structure built across a river to control the river's flow, creates hydroelectric power