law of conservation of matter

例句：

1. 1. The government isworking to preserve the natural habitat of endangered species.
   政府正在努力保护濒危物种的自然栖息地。
2. 2. The scientistis a conservationist whoworks to protect the environment.
   这位科学家是一位环保主义者，致力于保护环境。
3. 3. The forest ranger is responsible for protecting thewildlife in the park.
   森林管理员负责保护公园内的野生动物。
4. 4. The company is committed toconserving energy and reducing waste.
   该公司致力于节约能源和减少浪费。
5. 5. The farmersare experts in preservingtraditional farming practices.
   这些农民是传统农耕实践的专家。
6. 6. The museum isdedicated to conserving historical artifacts.
   这家博物馆致力于保护历史文物。
7. 7. The city isworking to conserve its historic buildings andlandmarks.
   该市正努力保护其历史建筑和地标。
8. 8. The scientistsare conducting research onhow to conserve biodiversity in the wild.
   科学家们正在进行研究，以了解如何在野外保护生物多样性。
9. 9.The government has passed laws to conservethe national parks.
   政府已经通过了法律来保护国家公园。
10. 10. The artist is known forhis ability to conserve beauty in everydaylife.
    这位艺术家因其在日常生活中保持美丽的能力而闻名。