We should try to eat all of our food and not __________ it by putting it in the rubbish bin. *
The __________ is everything around us, like the sky, the forest and even our classroom. *
Dropping our __________ in the streets pollutes the world. *
We should try our best to __________ paper, plastic and glass. *
You can __________ the air with a filtration system. *
Dolphins and whales are examples of __________ animals. *
Eating breakfast every day is an important healthy __________. *