百度试题 结果1 题目What do plants give out during photosynthesis? A. Oxygen B. Carbon dioxide C. Nitrogen D. Hydrogen 相关知识点: 试题来源: 解析 A。植物在光合作用过程中释放出氧气。反馈 收藏
Plants make food through a process called photosynthesis. What do plants need for photosynthesis? A. Sunlight, water and carbon dioxide. B. Sunlight, soil and oxygen. C. Water, soil and nitrogen. D. Sunlight, air and hydrogen. 相关知识点: ...
During photosynthesis, plants change light energy into chemical energy. What do plants store this chemical energy as? A. Starch B. Salt C. Wax D. Oil 相关知识点: 试题来源: 解析 A。解析:在光合作用中,植物将光能转化为化学能后,将这种化学能储存为淀粉。盐不是植物光合作用产生的能量储存形式;蜡...
In the process of photosynthesis, what gas is absorbed by plants? A. Oxygen B. Carbon dioxide C. Nitrogen D. Hydrogen 相关知识点: 试题来源: 解析 B。解析:在光合作用过程中,植物吸收二氧化碳来合成有机物并释放氧气。氧气是光合作用的产物而不是被吸收的气体;氮气不是光合作用中被吸收的气体;氢气也...
C. Sunlight, carbon dioxide, and oxygen. D. Water, carbon dioxide, and oxygen. 相关知识点: 试题来源: 解析 B。解析:文中提到“During photosynthesis, plants use sunlight, water, and carbon dioxide to make food.”,所以植物在光合作用中利用阳光、水和二氧化碳制造食物。反馈 收藏 ...
What do we know about photosynthesis? A. It helps plants to produce energy. B. It is regarded as a productive system for plants. C. It can increase leaf growth on plants by 14 percent. D. It is made up of sunlight,water and carbon dioxide. ...
In an ecosystem, plants are called producers because of photosynthesis. What does it mean? A. They produce only water B. They produce substances that other organisms need C. They produce only carbon dioxide D. They produce things for themselves only 相关知识点: ...
Other organisms would have no food or oxygen D. The temperature would not change 相关知识点: 试题来源: 解析 C。解析:如果植物没有光合作用,植物就不能制造氧气和有机物,那么其他生物就没有食物来源和氧气供应。选项A说会有更多动物是错误的,没有食物和氧气动物数量会减少。选项B说生态系统仍然平衡是错误...
In some polluted areas, plants may not be able to do photosynthesis well. What can we do to help plants do photosynthesis better for environmental protection? A. Pour more waste water into the soil B. Release more harmful gases into the air C. Clean up the air and soil pollution D. ...
Plants are the base of the food chain in an ecosystem because of photosynthesis. What can't happen without plants? A. Animals can still find other food sources easily B. The whole food chain would be affected C. There would be no need for other organisms D. The E. cosystem would be ...