2. If we use water ______, more people will have fresh water. (CARE)
3. We should protect the environment and save ______resources. NATURE
4. A number of cleaning products contain ______ chemicals. (HARM)
5. ______ habitats have been destroyed in recent years. (NATURE)
6. In many developing countries, water pollution is usually a leading cause of ______. (DIE)
7. The ______of lakes, rivers, oceans or underwater causes water pollution. (CONTAMINATE)
8. She worked ______ so that she could pass the final exams. (HARDLY)
careful
natural
harmful
Natural
death
contamination
hard