What is the difference between reflection and refraction of light? Explain with the help of a diagram.
Explain the process of photosynthesis and its significance in maintaining the balance of oxygen and carbon dioxide in the atmosphere.
What is the difference between aerobic and anaerobic respiration? Give an example of each.
What is a semiconductor? Explain the difference between n-type and p-type semiconductors.
State the law of conservation of energy. Explain how it applies to a simple pendulum.
Define force. Explain Newton’s second law of motion with an example.
What is an ecosystem? Explain the concept of food chain with a diagram.
What is meant by nuclear fission? Explain how it is used in nuclear reactors.
Differentiate between stalactite and stalagmite. Explain how they are formed.
Explain the process of excretion in humans. Name the organs involved in excretion and their functions.
These questions cover a range of topics from the Class 10 Science CBSE Board syllabus and are often asked in the board exams.
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