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Differentiate the eye defects: Myopia and Hypermetropia
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How are e-wastes generated?
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Higher Order Thinking Skill (HOT)
Why is the Government imposing ban on the use of polythene bags and plastics? Suggest alternatives. How is this ban likely to improve the environment?
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Match the following:
| Column - I | Column - II |
| 1. Retina | a. Path way of light |
| 2. Pupil | b. Far point comes closer |
| 3. Ciliary muscles | c. near point moves away |
| 4. Myopia | d. Screen of the eye |
| 5. Hypermetropia | e. Power of accommodation |
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What are the environmental effect caused by sewage?
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What is the difference between pulmonary circulation and systemic circulation?
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The eye defect ‘presbyopia’ can be corrected by
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What are the steps will you adopt for better waste management?
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What is the importance of rainwater harvesting?
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How does rainwater harvesting structures recharge ground water?
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Assertion: Rainwater harvesting is to collect and store rain water.
Reason: Rainwater can be directed to recharge the underground water source.
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Why is the circulation in man referred to as double circulation?
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What is the respiratory quotient?
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Initiation and stimulation of heartbeat take place by nerves.
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The closure of the mitral and tricuspid valves at the start of the ventricular systole produces the first sound ‘LUBB’.
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What are heart sounds? How are they produced?
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Why is the Sinoatrial node called the pacemaker of the heart?
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Differentiate between systole and diastole.
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Explain the conduction of heartbeat.
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