![]() | • Plants take in carbon dioxide (二氧化碳) and make oxygen (氧气) humans and animals need. • Plants make 98% of the oxygen we breathe. |
![]() | • Plants help clean water and reduce (减少) floods. • An evergreen tree can hold more than 15, 000 liters (公升) of water per year, reducing the risk of flooding. |
![]() | • A 2015 study showed that indoor plants can reduce stress. Plants can also help you stay focused and work efficiently (有效率地). |
![]() | • The world's food supply depends on about 150 plant species. • Just 12 kinds of plant provide three-quarters of the world's food. |
![]() | • Plants balance our climate. They help take carbon dioxide out of the air, which can slow down global warming. |
Top 6 popular activities | Different favorites | What's stopping people from exercise? | |
![]() Running 57. 3% Walking 51. 5% Cycling 36. 6% Playing ball games 25. 8% Swimming 25. 0% Hiking 21. 6% | Born after 2000 Ball games ![]() | Born in 1990s Yoga ![]() | No professional training 42. 9%![]() No time 33. 2% ![]() No exercise facilities (设施) 23. 9% ![]() |
Born in 1980s Swimming ![]() | Born in 1970s Walking ![]() |
A. The things that are important are the things you learn about yourself. B. It brings me joy and friendship wherever I go. C. If you hate school, don't give up hope. D. However, high schools are somehow different and special. E. My biggest regret is never acting in a play. |