（214? Since the winter, smog weather has frequently appeared in many places in China. Scientists have warned that the adverse effects of smog in China on agriculture are like "nuclear"
(2) Water is lost by transpiration, and the pot of geranium is placed in the light for a period of time. There are some small water droplets in the plastic bag B, which come from the transpiration of plants.
(3) Photosynthesis releases oxygen, which has a combustion-supporting effect. In the afternoon, open the mouths of bag A and bag B, and quickly put a match that is about to go out into the bag. There is no obvious phenomenon in A, and the match B is rekindled, indicating that the oxygen in bag B is rich, which is the result of plant photosynthesis.
(4) Carbon dioxide can put out the fire. In the evening, put on a plastic bag and tie the bag mouth tightly. At dawn the next day, open the bags A and B and quickly put in a burning match. There is no obvious phenomenon in A, and the match in B goes out, which shows that the carbon dioxide in the bag B is rich, which is the result of plant respiration. < P > (5) Yiran students repeated the experiment many times, in order to reduce the error. After many experiments, the experimental results are the same. It can be concluded that hole closure will affect the physiological functions of plants.
(6) Environmental protection measures taken by myself in life: going to school by bike, saving electricity, planting trees, etc.
So the answer is:
(1) Control; Whether the stomata can be opened;
(2) transpiration;
(3) oxygen; Photosynthesis;
(4) carbon dioxide; Respiration;
(5) reduce errors; Hole closure will affect the physiological function of plants;
(6) Go to school by bike.