The paper is engaged in an experiment to explore the effects of the acid rain on the growth and photosynthesis of soybean seedlings, which are cultivated in the lab conditions by taking water culture as their testing material.In our experiment, our focus was turned on finding the effects of dosage on the growth and photosynthetic reaction on the seedlings.The final results of our experiment indicate that the simulated acid rain has considerable effect on the growth and photosynthesis of the soybean seedling...