how can light be used in life?
回答 (1)
2008-03-14 7:12 pm
✔ 最佳答案
light is for illumination. when there is no light, we cannot see anything.just like we are in the dark.
for plant, it is more important, plant can make photosynthesie only if light is
present.
so light is very important for us and plant.
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