Science Quiz

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Q1. Photosynthesis occurs only during the daytime. True False Details Photosynthesis requires sunlight as a source of energy to convert carbon dioxide and water into glucose and oxygen. Since sunlight is available only during the day, the light-dependent reactions of photosynthesis occur during daytime. However, some processes like the Calvin cycle can continue briefly in […]

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๐Ÿ“˜ Study MCQs Q1. What happens when copper powder is heated in air? CBSE 2026 A. It melts. B. It turns white. C. Its surface gets coated with black copper(II) oxide. D. It evaporates. AnswerC. Its surface gets coated with black copper(II) oxide.Details When copper powder is heated in the presence of air (oxygen), it

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