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Paragraph # 1: Photosynthesis Photosynthesis is a process in plants that converts carbon dioxide and water into plant food using the energy from sunlight. During this process, oxygen is set free into the atmosphere, thus maintaining the normal levels of oxygen needed to sustain life.

Paragraph # 2: Water Molecules A compound is made from a mixture of separate elements. Water is a good example of a compound. One molecule of water is made from a combination of three atoms - one oxygen and two hydrogen atoms.