4. You must read the (INSTRUCT) carefully before you use the new oven. 5. Unfortunately, lots of species are (EXTINCTION). 6. It is always (INTEREST) to watch the cubs at play, 7. A: My mom passed away. (LOSE) B: Oh my god! I am so sorry for your 8. The (HOT) makes everybody very drowsy during the lesson in class. 9. extinct. (DANGER) species, if not protected, could eventually become the environment? 10. Is afforestation the best way to (CONSERVATION) 11. Instead of need it. (WATER) the entire garden, just water the plants that 12. Cục Phương Ninh Binh province. (NATION) Park is a famous tourist destination in 13. Chemicals or particles in the air can humans, animals and plants. (HARMFUL) the health of 14. It's estimated that the global of the world's ecosystem services equals $125 trillion annually. (VALUABLE) 15. For many their eyes. (ENVIRONMENT) the world seems to be getting worse in 16. Earth's climate has remained continuously throughout 3 or 4 billion years. (HABITAT) 17. There should be of volunteers and active participation of young people in environmental protection. (ENCOURAGE) 18. The five major air are carbon monoxide, hydrocarbons, nitrogen oxides, sulfur oxides, and airborne solid particles. (POLLUTE)
