1.<span>A</span> garbage is not only ugly, bute dangerous because it causes <span>an</span> air pollution.
2. Cars are <span>an</span> important part of a life for most people. But cars also cause <span>a</span> pollution and release fume.
3. In Canada people don't realise that they throw out 10,000 tons of <span>a</span> waste.
4. Over 14 billion pounds of <span>a</span> waste per year is throw out to sea and it kills millions of sea animals.
5. If we want to breathe <span>a</span> healthy air we have to think about what we do.
6. Because of our lack of <span>a</span> knowledge there is now <span>a</span> huge hole over <span>an</span> Antractic.
7.<span>A</span> water is a vital element of <span>a</span> life.