We use public transportation and reduce ______.
pollution
We have to ________ after picnic.
clean up
We have to ____________ when we are not using them.
turn off the lights
We need to _______ paper, glass, plastic and dead batteries.
recycle
Don´t ___________.
cut down the trees.
We need to ________ more trees.
plant
We need to __________.
save water
It is better if we ________.
reuse bags
It is better if we _________.
buy organic food
I like to _____________.
ride a bike to school/work
