Look at my s____.

阅读短文，选择正确的答案。

    I'm a lovely girl. You can call me Li Li. I like the blue sky and white cloud. I also like colourful flowers. I love my family. I love my father and mother. I go to school from Monday to Friday. Our home is near the school. We have a house. It is a clean and beautiful house. The house has three rooms. One is a living room. The other two are bedrooms. In the living room,  there is a table and six chairs. There are some flowers on the table. There is a garden in front of the house. I often play games and take pictures in the garden. Our house isn't big, but we like it.

①2013年，全国多个省市出现严重的雾霾天气．导致雾霾形成的主要污染物是____（填字母）；

A．O₂    B．CO₂       C．PM2.5

②采用焚烧处理垃圾进行发电已在江苏投入使用．下列是生活中的常见垃圾．

A．废电池    B．易拉罐     C．玻璃瓶

在焚烧处理前，除废电池外，还有____（填字母）应剔除并回收．

③漂白粉可用于生活用水的杀菌消毒，工业上利用氯气和石灰乳制取漂白粉的化学反应方程式是____．