What do trees give us?
C. Clothes and toys.
A. Clean air and paper.
B. Candy and food.
How can we use less paper?
A. Write on both sides of paper.
C. Use one page only.
B. Throw away notebooks.
Why is turning off the tap important?
A. It saves water.
B. It cleans the floor.
C. It makes water faster.
Where should trash go?
B. In the bin.
C. On the street.
A. In the garden.
What should we do with old bottles?
B. Throw them anywhere
A. Recycle them
C. Hide them