When people put rubbish in rivers and lakes, they cause _____ in the water. (climate change, the environment, pollution)
When people put rubbish in rivers and lakes, they cause pollution in the water.
My friends are going to start a ______ . They want to ______ the butterflies that live in Riverside Park. (conservation project, climate change, prevent, save)
My friends are going to start a conservation project. They want to save the butterflies that live in Riverside Park.
Several ____ of gorillas are on the list of _____ animals. There are very few of them left in the wild. (creatures, species, endangered, natural)
Several species of gorillas are on the list of endangered animals. There are very few of them left in the wild.
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