Given the question: Answer the following question given this paragraph:   Living things need nonliving matter as well as energy. What do you think matter is used for? One thing is to build bodies. They also need it to carry out the processes of life. Any nonliving matter that living things need is called a nutrient . Carbon and nitrogen are examples of nutrients. Unlike energy, matter is recycled in ecosystems. You can see how in Figure below .   Q: What are the nonliving matter that living things need called?   Choices:  - fluids  - elements  - acids  - nutrients  A:
The answer is:
nutrients