Concept:Green plants make their own food by using sunlight energy to combine carbon dioxide and water, a process known as photosynthesis.Explanation:Plants absorb carbon dioxide from the air through stomata and obtain water from the soil through their roots.Leaves contain chlorophyll, which traps energy from sunlight.This trapped light energy is used to convert carbon dioxide and water into glucose, which serves as food, and oxygen is released as a by-product.The overall chemical equation for photosynthesis is:6CO2+6H2OsunlightC6H12O6+6O2This process is vital for plant survival and also supplies oxygen to the atmosphere.Hence, the correct term for this food-manufacturing process in plants is photosynthesis.Answer:B. photosynthesis