We must ________ plastic use.
reduce
We saw lots of ________ in the national park.
wildlife
The river is full of ________ waste.
toxic
The Amazon is the world’s largest ________.
rainforest
________ is used to make electricity.
Wind power
Pollution can ________ the ocean.
damage
They put ________ on the roof.
solar panels
We need to ________ forests and animals.
protect