What is it?
recycling (paper)
What is it?
pollution
What is it?
the ocean
What is it?
a car
What is it?
the Earth
What is it?
a plant
What is it?
a bicycle
What is it?
plants
What is it?
a recycling bin
What is it?
a tree
What is it?
a polar bear
What is it?
garbage
What is it?
plastic
What is it?
a honey bee
What is it?
the Earth
What is it?
pollution
What is it?
a bus