Question
Explain by an example what is meant by potential energy. Write down the expression for gravitational potential energy of a body of mass m placed at a height h above the surface of the earth.
Explain by an example what is meant by potential energy. Write down the expression for gravitational potential energy of a body of mass m placed at a height h above the surface of the earth.
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Write down four general characters of cnidarians (coelenterates). Give two examples.
Define the following: tendon, ligament and cartilage.
Describe the methods of carbon replenishment of atmosphere.
In a cluster of hutments, many people are suffering from malaria. Mention the unhygienic conditions that must be prevailing in that locality. How does a doctor confirm malaria?
| Atomic Number | Mass Number | Number of Neutrons | Number of Protons | Number of Electrons | Name of the Atomic Species |
| 9 16 - - - | - 32 24 2 1 | 10 - - - 0 | - - 12 1 1 | - - - - 0 | - Sulphur - - - |