Use the verbs in the correct form to complete the sentences.

1. Layers of gas surround the Earth. 2. Light from the sun takes 8.4 minutes to reach the Earth. 3. Scientists discovered a new planet in 2009. 4. Deforestation destroys animals' natural habitats. 5. The ozone layer doesn't filter harmful sun rays through. 6. The hole in the ozone layer gets bigger all the time. 7. The sun rises in the East and sets in the West. 8. We need to do everything we can to fix the hole in the ozone layer.