Ch.4 Key Notes

P.23

1. The Earth is green and blue, and it is very beautiful.

2. Our daily activities produce a large amount waste, sewage discharges and exhaust fumes. They pollute the environment and affect the ecology. 

P.24 

1. Plastics bag, plastic knife and fork, straw, foam box, aluminium can and paper napkin.

2. Waste buried underground will decay and decompose after some time. 

P.25

1. Put the plastic bag and can into a garbage bin. 

2. Much waste is transported to the landfills.

3. Put the can into a recycling bin.

4. Aluminum cans for recycling. 

5. Save the plastic bag for future use. 

6. Reuse the plastic bag.

"What does this logo mean?"

This logo means the material of the product is recyclable, such as aluminium or some plastic.

P.26

1. B

2. A

3. D

4. C

2. Making toys with rubbish