This is an example of the Water Cycle.
Water returning to the Earth from the atmosphere would be precipitation
Answer: <u>Activators </u> can switch on enzyme activity, while <u>inhibitors </u>can switch off or reduce enzyme activity.
Enzymes are biomolecules that catalyzes a reaction. The enzymes can either speed up or slows down a reaction. Activators are compounds, molecules or elements that attach to the enzyme and promotes its activity. Inhibitors are factors which prevent the activity of the enzyme. Both activators and inhibitors are necessary for cellular metabolisms taking place in a living organism.
This isn't a topic. But a good tip is to choose something you find interest in. This way you can present your project in a good, happy manor and actually enjoy doing the project.