Generate a sentence that answers this question: "We can help a plant by".

Answer: In the photosynthesis process oxygen has the role of waste product

Generate a sentence that answers this question: "Friction increases as what increases on a surface?".

Answer: as roughness of a surface increases , friction will increase

Generate a sentence that answers this question: "What happens to body water when animal activity rises".

Answer:
as the activity of an animal increases , the amount of water in an animal 's body in that environment will decrease